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#aaa; background: #f9f9f9; width: 100%; background: #f9f9f9; border:1px solid #E3B100;\"\u003E\n\u003Ctbody\u003E\u003Ctr\u003E\t\n\u003Ctd class=\"mbox-image\"\u003E\n \u003Cspan typeof=\"mw:File\"\u003E\u003Ca href=\"/wiki/Marko_Maruli%C4%87\" title=\"Marko Marulić\"\u003E\u003Cimg src=\"//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Wikipedia_Puzzleball_Maruli%C4%87_500.png/40px-Wikipedia_Puzzleball_Maruli%C4%87_500.png\" decoding=\"async\" width=\"40\" height=\"40\" class=\"mw-file-element\" srcset=\"//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Wikipedia_Puzzleball_Maruli%C4%87_500.png/60px-Wikipedia_Puzzleball_Maruli%C4%87_500.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/75/Wikipedia_Puzzleball_Maruli%C4%87_500.png/80px-Wikipedia_Puzzleball_Maruli%C4%87_500.png 2x\" data-file-width=\"640\" data-file-height=\"640\" /\u003E\u003C/a\u003E\u003C/span\u003E\u003C/td\u003E\n\u003Ctd class=\"mbox-text\" style=\"\"\u003E \u003Cb\u003EGodina \u003Ca href=\"/wiki/Marko_Maruli%C4%87\" title=\"Marko Marulić\"\u003EMarka Marulića\u003C/a\u003E\u003C/b\u003E – 500 godina od smrti oca hrvatske književnosti. \u003C/td\u003E\n\u003C/tr\u003E\n\u003C/tbody\u003E\u003C/table\u003E\n\u003Ctable class=\"plainlinks fmbox fmbox-system\" style=\"clear: both; margin: 0.2em 0; border: 1px solid #aaa; background: #f9f9f9; width: 100%; background: #f9f9f9; border:1px solid #eaa;\"\u003E\n\u003Ctbody\u003E\u003Ctr\u003E\t\n\u003Ctd class=\"mbox-image\"\u003E\n \u003Cspan typeof=\"mw:File\"\u003E\u003Ca href=\"/wiki/Wikipedija:Kriteriji_zna%C4%8Dajnosti_po_temama\" title=\"Wikipedija:Kriteriji značajnosti po temama\"\u003E\u003Cimg src=\"//upload.wikimedia.org/wikipedia/commons/thumb/3/36/Help-content.svg/22px-Help-content.svg.png\" decoding=\"async\" width=\"22\" height=\"22\" class=\"mw-file-element\" srcset=\"//upload.wikimedia.org/wikipedia/commons/thumb/3/36/Help-content.svg/33px-Help-content.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/36/Help-content.svg/44px-Help-content.svg.png 2x\" data-file-width=\"48\" data-file-height=\"48\" /\u003E\u003C/a\u003E\u003C/span\u003E\u003C/td\u003E\n\u003Ctd class=\"mbox-text\" style=\"\"\u003E \u003Ca href=\"/wiki/Wikipedija:Kriteriji_zna%C4%8Dajnosti_po_temama\" title=\"Wikipedija:Kriteriji značajnosti po temama\"\u003ERaspravite \u003Cb\u003Erazradu po temama kriterija\u003C/b\u003E o značajnosti!\u003C/a\u003E \u003C/td\u003E\n\u003C/tr\u003E\n\u003C/tbody\u003E\u003C/table\u003E\u003C/div\u003E\u003C/div\u003E\u003C/div\u003E\u003C/div\u003E";}}());</script></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Mrežno mjesto"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Sadržaj" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Sadržaj</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">premjesti</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">sakrij</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Početak</div> </a> </li> <li id="toc-Trenutak_i_vremenski_interval" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Trenutak_i_vremenski_interval"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Trenutak i vremenski interval</span> </div> </a> <button aria-controls="toc-Trenutak_i_vremenski_interval-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Sadržaj cjeline Trenutak i vremenski interval</span> </button> <ul id="toc-Trenutak_i_vremenski_interval-sublist" class="vector-toc-list"> <li id="toc-Trenutak" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Trenutak"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>Trenutak</span> </div> </a> <ul id="toc-Trenutak-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Vremenski_interval" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Vremenski_interval"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>Vremenski interval</span> </div> </a> <ul id="toc-Vremenski_interval-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Vrijeme_u_astronomiji" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Vrijeme_u_astronomiji"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Vrijeme u astronomiji</span> </div> </a> <button aria-controls="toc-Vrijeme_u_astronomiji-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Sadržaj cjeline Vrijeme u astronomiji</span> </button> <ul id="toc-Vrijeme_u_astronomiji-sublist" class="vector-toc-list"> <li id="toc-Sunčevo_i_zvjezdano_vrijeme" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Sunčevo_i_zvjezdano_vrijeme"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Sunčevo i zvjezdano vrijeme</span> </div> </a> <ul id="toc-Sunčevo_i_zvjezdano_vrijeme-sublist" class="vector-toc-list"> <li id="toc-Zvjezdano_vrijeme" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Zvjezdano_vrijeme"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1.1</span> <span>Zvjezdano vrijeme</span> </div> </a> <ul id="toc-Zvjezdano_vrijeme-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Srednji_Sunčev_dan" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Srednji_Sunčev_dan"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1.2</span> <span>Srednji Sunčev dan</span> </div> </a> <ul id="toc-Srednji_Sunčev_dan-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Jednadžba_vremena" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Jednadžba_vremena"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1.3</span> <span>Jednadžba vremena</span> </div> </a> <ul id="toc-Jednadžba_vremena-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Srednje_Sunčevo_vrijeme" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Srednje_Sunčevo_vrijeme"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1.4</span> <span>Srednje Sunčevo vrijeme</span> </div> </a> <ul id="toc-Srednje_Sunčevo_vrijeme-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Koordinirano_svjetsko_vrijeme_UTC" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Koordinirano_svjetsko_vrijeme_UTC"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1.5</span> <span>Koordinirano svjetsko vrijeme UTC</span> </div> </a> <ul id="toc-Koordinirano_svjetsko_vrijeme_UTC-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Pravo_Sunčevo_vrijeme" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Pravo_Sunčevo_vrijeme"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1.6</span> <span>Pravo Sunčevo vrijeme</span> </div> </a> <ul id="toc-Pravo_Sunčevo_vrijeme-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Datumska_granica" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Datumska_granica"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1.7</span> <span>Datumska granica</span> </div> </a> <ul id="toc-Datumska_granica-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Sekunda" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Sekunda"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1.8</span> <span>Sekunda</span> </div> </a> <ul id="toc-Sekunda-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </li> <li id="toc-Vrijeme_u_teoriji_relativnosti" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Vrijeme_u_teoriji_relativnosti"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Vrijeme u teoriji relativnosti</span> </div> </a> <ul id="toc-Vrijeme_u_teoriji_relativnosti-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Mjerne_jedinice_za_vrijeme" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Mjerne_jedinice_za_vrijeme"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Mjerne jedinice za vrijeme</span> </div> </a> <button aria-controls="toc-Mjerne_jedinice_za_vrijeme-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Sadržaj cjeline Mjerne jedinice za vrijeme</span> </button> <ul id="toc-Mjerne_jedinice_za_vrijeme-sublist" class="vector-toc-list"> <li id="toc-Nestandardne_mjerne_jedinice_za_vrijeme" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Nestandardne_mjerne_jedinice_za_vrijeme"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Nestandardne mjerne jedinice za vrijeme</span> </div> </a> <ul id="toc-Nestandardne_mjerne_jedinice_za_vrijeme-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Izvori" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Izvori"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Izvori</span> </div> </a> <ul id="toc-Izvori-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Sadržaj" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Prikaz sadržaja stranice" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Prikaz sadržaja stranice</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading">Vrijeme (fizika): razlika između inačica</h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Idi na druge jezične varijante članka. Dostupan je na 184 jezika" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-184" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">184 jezika</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ab mw-list-item"><a href="https://ab.wikipedia.org/wiki/%D0%90%D0%B0%D0%BC%D2%AD%D0%B0" title="Аамҭа – abhaski" lang="ab" hreflang="ab" data-title="Аамҭа" data-language-autonym="Аԥсшәа" data-language-local-name="abhaski" class="interlanguage-link-target"><span>Аԥсшәа</span></a></li><li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Tyd" title="Tyd – afrikaans" lang="af" hreflang="af" data-title="Tyd" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-als mw-list-item"><a href="https://als.wikipedia.org/wiki/Zeit" title="Zeit – švicarski njemački" lang="gsw" hreflang="gsw" data-title="Zeit" data-language-autonym="Alemannisch" data-language-local-name="švicarski njemački" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-am mw-list-item"><a href="https://am.wikipedia.org/wiki/%E1%8C%8A%E1%8B%9C" title="ጊዜ – amharski" lang="am" hreflang="am" data-title="ጊዜ" data-language-autonym="አማርኛ" data-language-local-name="amharski" class="interlanguage-link-target"><span>አማርኛ</span></a></li><li class="interlanguage-link interwiki-an mw-list-item"><a href="https://an.wikipedia.org/wiki/Tiempo" title="Tiempo – aragonski" lang="an" hreflang="an" data-title="Tiempo" data-language-autonym="Aragonés" data-language-local-name="aragonski" class="interlanguage-link-target"><span>Aragonés</span></a></li><li class="interlanguage-link interwiki-anp mw-list-item"><a href="https://anp.wikipedia.org/wiki/%E0%A4%B8%E0%A4%AE%E0%A4%AF" title="समय – angika" lang="anp" hreflang="anp" data-title="समय" data-language-autonym="अंगिका" data-language-local-name="angika" class="interlanguage-link-target"><span>अंगिका</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B2%D9%85%D9%86" title="زمن – arapski" lang="ar" hreflang="ar" data-title="زمن" data-language-autonym="العربية" data-language-local-name="arapski" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ary mw-list-item"><a href="https://ary.wikipedia.org/wiki/%D8%B2%D9%85%D8%A7%D9%86" title="زمان – Moroccan Arabic" lang="ary" hreflang="ary" data-title="زمان" data-language-autonym="الدارجة" data-language-local-name="Moroccan Arabic" class="interlanguage-link-target"><span>الدارجة</span></a></li><li class="interlanguage-link interwiki-as mw-list-item"><a href="https://as.wikipedia.org/wiki/%E0%A6%B8%E0%A6%AE%E0%A6%AF%E0%A6%BC" title="সময় – asamski" lang="as" hreflang="as" data-title="সময়" data-language-autonym="অসমীয়া" data-language-local-name="asamski" class="interlanguage-link-target"><span>অসমীয়া</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Tiempu" title="Tiempu – asturijski" lang="ast" hreflang="ast" data-title="Tiempu" data-language-autonym="Asturianu" data-language-local-name="asturijski" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-atj mw-list-item"><a href="https://atj.wikipedia.org/wiki/Tipahikanicic" title="Tipahikanicic – atikamekw" lang="atj" hreflang="atj" data-title="Tipahikanicic" data-language-autonym="Atikamekw" data-language-local-name="atikamekw" class="interlanguage-link-target"><span>Atikamekw</span></a></li><li class="interlanguage-link interwiki-av mw-list-item"><a href="https://av.wikipedia.org/wiki/%D0%9C%D0%B5%D1%85" title="Мех – avarski" lang="av" hreflang="av" data-title="Мех" data-language-autonym="Авар" data-language-local-name="avarski" class="interlanguage-link-target"><span>Авар</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Zaman" title="Zaman – azerbajdžanski" lang="az" hreflang="az" data-title="Zaman" data-language-autonym="Azərbaycanca" data-language-local-name="azerbajdžanski" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%B2%D8%A7%D9%85%D8%A7%D9%86" title="زامان – South Azerbaijani" lang="azb" hreflang="azb" data-title="زامان" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-ba mw-list-item"><a href="https://ba.wikipedia.org/wiki/%D0%92%D0%B0%D2%A1%D1%8B%D1%82" title="Ваҡыт – baškirski" lang="ba" hreflang="ba" data-title="Ваҡыт" data-language-autonym="Башҡортса" data-language-local-name="baškirski" class="interlanguage-link-target"><span>Башҡортса</span></a></li><li class="interlanguage-link interwiki-bar mw-list-item"><a href="https://bar.wikipedia.org/wiki/Zeid" title="Zeid – Bavarian" lang="bar" hreflang="bar" data-title="Zeid" data-language-autonym="Boarisch" data-language-local-name="Bavarian" class="interlanguage-link-target"><span>Boarisch</span></a></li><li class="interlanguage-link interwiki-bat-smg mw-list-item"><a href="https://bat-smg.wikipedia.org/wiki/%C4%8Ciesos" title="Čiesos – Samogitian" lang="sgs" hreflang="sgs" data-title="Čiesos" data-language-autonym="Žemaitėška" data-language-local-name="Samogitian" class="interlanguage-link-target"><span>Žemaitėška</span></a></li><li class="interlanguage-link interwiki-bcl mw-list-item"><a href="https://bcl.wikipedia.org/wiki/Oras" title="Oras – Central Bikol" lang="bcl" hreflang="bcl" data-title="Oras" data-language-autonym="Bikol Central" data-language-local-name="Central Bikol" class="interlanguage-link-target"><span>Bikol Central</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A7%D0%B0%D1%81" title="Час – bjeloruski" lang="be" hreflang="be" data-title="Час" data-language-autonym="Беларуская" data-language-local-name="bjeloruski" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%A7%D0%B0%D1%81" title="Час – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Час" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%92%D1%80%D0%B5%D0%BC%D0%B5" title="Време – bugarski" lang="bg" hreflang="bg" data-title="Време" data-language-autonym="Български" data-language-local-name="bugarski" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bh mw-list-item"><a href="https://bh.wikipedia.org/wiki/%E0%A4%B8%E0%A4%AE%E0%A4%AF" title="समय – Bhojpuri" lang="bh" hreflang="bh" data-title="समय" data-language-autonym="भोजपुरी" data-language-local-name="Bhojpuri" class="interlanguage-link-target"><span>भोजपुरी</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%B8%E0%A6%AE%E0%A6%AF%E0%A6%BC" title="সময় – bangla" lang="bn" hreflang="bn" data-title="সময়" data-language-autonym="বাংলা" data-language-local-name="bangla" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bo mw-list-item"><a href="https://bo.wikipedia.org/wiki/%E0%BD%91%E0%BD%B4%E0%BD%A6%E0%BC%8B%E0%BD%9A%E0%BD%BC%E0%BD%91%E0%BC%8D" title="དུས་ཚོད། – tibetski" lang="bo" hreflang="bo" data-title="དུས་ཚོད།" data-language-autonym="བོད་ཡིག" data-language-local-name="tibetski" class="interlanguage-link-target"><span>བོད་ཡིག</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Amzer" title="Amzer – bretonski" lang="br" hreflang="br" data-title="Amzer" data-language-autonym="Brezhoneg" data-language-local-name="bretonski" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Vrijeme_(fizika)" title="Vrijeme (fizika) – bosanski" lang="bs" hreflang="bs" data-title="Vrijeme (fizika)" data-language-autonym="Bosanski" data-language-local-name="bosanski" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-bxr mw-list-item"><a href="https://bxr.wikipedia.org/wiki/%D0%A1%D0%B0%D0%B3_%D1%85%D1%83%D0%B3%D0%B0%D1%81%D0%B0%D0%B0" title="Саг хугасаа – Russia Buriat" lang="bxr" hreflang="bxr" data-title="Саг хугасаа" data-language-autonym="Буряад" data-language-local-name="Russia Buriat" class="interlanguage-link-target"><span>Буряад</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Temps" title="Temps – katalonski" lang="ca" hreflang="ca" data-title="Temps" data-language-autonym="Català" data-language-local-name="katalonski" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cdo mw-list-item"><a href="https://cdo.wikipedia.org/wiki/S%C3%AC-g%C4%83ng" title="Sì-găng – Mindong" lang="cdo" hreflang="cdo" data-title="Sì-găng" data-language-autonym="閩東語 / Mìng-dĕ̤ng-ngṳ̄" data-language-local-name="Mindong" class="interlanguage-link-target"><span>閩東語 / Mìng-dĕ̤ng-ngṳ̄</span></a></li><li class="interlanguage-link interwiki-ceb mw-list-item"><a href="https://ceb.wikipedia.org/wiki/Panahon" title="Panahon – cebuano" lang="ceb" hreflang="ceb" data-title="Panahon" data-language-autonym="Cebuano" data-language-local-name="cebuano" class="interlanguage-link-target"><span>Cebuano</span></a></li><li class="interlanguage-link interwiki-chr mw-list-item"><a href="https://chr.wikipedia.org/wiki/%E1%8E%A2%E1%8F%B3%E1%8F%A9%E1%8E%AA%E1%8F%97" title="ᎢᏳᏩᎪᏗ – čerokijski" lang="chr" hreflang="chr" data-title="ᎢᏳᏩᎪᏗ" data-language-autonym="ᏣᎳᎩ" data-language-local-name="čerokijski" class="interlanguage-link-target"><span>ᏣᎳᎩ</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%DA%A9%D8%A7%D8%AA" title="کات – soranski kurdski" lang="ckb" hreflang="ckb" data-title="کات" data-language-autonym="کوردی" data-language-local-name="soranski kurdski" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/%C4%8Cas" title="Čas – češki" lang="cs" hreflang="cs" data-title="Čas" data-language-autonym="Čeština" data-language-local-name="češki" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cu mw-list-item"><a href="https://cu.wikipedia.org/wiki/%D0%92%D1%80%D1%A3%D0%BC%D1%A7" title="Врѣмѧ – crkvenoslavenski" lang="cu" hreflang="cu" data-title="Врѣмѧ" data-language-autonym="Словѣньскъ / ⰔⰎⰑⰂⰡⰐⰠⰔⰍⰟ" data-language-local-name="crkvenoslavenski" class="interlanguage-link-target"><span>Словѣньскъ / ⰔⰎⰑⰂⰡⰐⰠⰔⰍⰟ</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%92%C4%83%D1%85%C4%83%D1%82" title="Вăхăт – čuvaški" lang="cv" hreflang="cv" data-title="Вăхăт" data-language-autonym="Чӑвашла" data-language-local-name="čuvaški" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Amser" title="Amser – velški" lang="cy" hreflang="cy" data-title="Amser" data-language-autonym="Cymraeg" data-language-local-name="velški" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Tid" title="Tid – danski" lang="da" hreflang="da" data-title="Tid" data-language-autonym="Dansk" data-language-local-name="danski" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Zeit" title="Zeit – njemački" lang="de" hreflang="de" data-title="Zeit" data-language-autonym="Deutsch" data-language-local-name="njemački" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-diq mw-list-item"><a href="https://diq.wikipedia.org/wiki/Zeman" title="Zeman – Zazaki" lang="diq" hreflang="diq" data-title="Zeman" data-language-autonym="Zazaki" data-language-local-name="Zazaki" class="interlanguage-link-target"><span>Zazaki</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A7%CF%81%CF%8C%CE%BD%CE%BF%CF%82" title="Χρόνος – grčki" lang="el" hreflang="el" data-title="Χρόνος" data-language-autonym="Ελληνικά" data-language-local-name="grčki" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-eml mw-list-item"><a href="https://eml.wikipedia.org/wiki/T%C3%A8imp" title="Tèimp – Emiliano-Romagnolo" lang="egl" hreflang="egl" data-title="Tèimp" data-language-autonym="Emiliàn e rumagnòl" data-language-local-name="Emiliano-Romagnolo" class="interlanguage-link-target"><span>Emiliàn e rumagnòl</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Time" title="Time – engleski" lang="en" hreflang="en" data-title="Time" data-language-autonym="English" data-language-local-name="engleski" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Tempo" title="Tempo – esperanto" lang="eo" hreflang="eo" data-title="Tempo" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Tiempo" title="Tiempo – španjolski" lang="es" hreflang="es" data-title="Tiempo" data-language-autonym="Español" data-language-local-name="španjolski" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Aeg" title="Aeg – estonski" lang="et" hreflang="et" data-title="Aeg" data-language-autonym="Eesti" data-language-local-name="estonski" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Denbora" title="Denbora – baskijski" lang="eu" hreflang="eu" data-title="Denbora" data-language-autonym="Euskara" data-language-local-name="baskijski" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-ext mw-list-item"><a href="https://ext.wikipedia.org/wiki/Tiempu" title="Tiempu – Extremaduran" lang="ext" hreflang="ext" data-title="Tiempu" data-language-autonym="Estremeñu" data-language-local-name="Extremaduran" class="interlanguage-link-target"><span>Estremeñu</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B2%D9%85%D8%A7%D9%86" title="زمان – perzijski" lang="fa" hreflang="fa" data-title="زمان" data-language-autonym="فارسی" data-language-local-name="perzijski" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Aika" title="Aika – finski" lang="fi" hreflang="fi" data-title="Aika" data-language-autonym="Suomi" data-language-local-name="finski" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fiu-vro mw-list-item"><a href="https://fiu-vro.wikipedia.org/wiki/Aig" title="Aig – Võro" lang="vro" hreflang="vro" data-title="Aig" data-language-autonym="Võro" data-language-local-name="Võro" class="interlanguage-link-target"><span>Võro</span></a></li><li class="interlanguage-link interwiki-fj mw-list-item"><a href="https://fj.wikipedia.org/wiki/Gauna" title="Gauna – fidžijski" lang="fj" hreflang="fj" data-title="Gauna" data-language-autonym="Na Vosa Vakaviti" data-language-local-name="fidžijski" class="interlanguage-link-target"><span>Na Vosa Vakaviti</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Temps" title="Temps – francuski" lang="fr" hreflang="fr" data-title="Temps" data-language-autonym="Français" data-language-local-name="francuski" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/Tidj" title="Tidj – sjevernofrizijski" lang="frr" hreflang="frr" data-title="Tidj" data-language-autonym="Nordfriisk" data-language-local-name="sjevernofrizijski" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-fur mw-list-item"><a href="https://fur.wikipedia.org/wiki/Timp" title="Timp – furlanski" lang="fur" hreflang="fur" data-title="Timp" data-language-autonym="Furlan" data-language-local-name="furlanski" class="interlanguage-link-target"><span>Furlan</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/Tiid" title="Tiid – zapadnofrizijski" lang="fy" hreflang="fy" data-title="Tiid" data-language-autonym="Frysk" data-language-local-name="zapadnofrizijski" class="interlanguage-link-target"><span>Frysk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Am" title="Am – irski" lang="ga" hreflang="ga" data-title="Am" data-language-autonym="Gaeilge" data-language-local-name="irski" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gcr mw-list-item"><a href="https://gcr.wikipedia.org/wiki/Tan" title="Tan – Guianan Creole" lang="gcr" hreflang="gcr" data-title="Tan" data-language-autonym="Kriyòl gwiyannen" data-language-local-name="Guianan Creole" class="interlanguage-link-target"><span>Kriyòl gwiyannen</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Tempo" title="Tempo – galicijski" lang="gl" hreflang="gl" data-title="Tempo" data-language-autonym="Galego" data-language-local-name="galicijski" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-gn mw-list-item"><a href="https://gn.wikipedia.org/wiki/%C3%81ra" title="Ára – gvaranski" lang="gn" hreflang="gn" data-title="Ára" data-language-autonym="Avañe'ẽ" data-language-local-name="gvaranski" class="interlanguage-link-target"><span>Avañe'ẽ</span></a></li><li class="interlanguage-link interwiki-ha badge-Q17559452 badge-recommendedarticle mw-list-item" title="preporučeni članak"><a href="https://ha.wikipedia.org/wiki/Lokaci" title="Lokaci – hausa" lang="ha" hreflang="ha" data-title="Lokaci" data-language-autonym="Hausa" data-language-local-name="hausa" class="interlanguage-link-target"><span>Hausa</span></a></li><li class="interlanguage-link interwiki-hak mw-list-item"><a href="https://hak.wikipedia.org/wiki/S%E1%B9%B3%CC%80-ki%C3%AAn" title="Sṳ̀-kiên – hakka kineski" lang="hak" hreflang="hak" data-title="Sṳ̀-kiên" data-language-autonym="客家語 / Hak-kâ-ngî" data-language-local-name="hakka kineski" class="interlanguage-link-target"><span>客家語 / Hak-kâ-ngî</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%96%D7%9E%D7%9F" title="זמן – hebrejski" lang="he" hreflang="he" data-title="זמן" data-language-autonym="עברית" data-language-local-name="hebrejski" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%B8%E0%A4%AE%E0%A4%AF" title="समय – hindski" lang="hi" hreflang="hi" data-title="समय" data-language-autonym="हिन्दी" data-language-local-name="hindski" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hif mw-list-item"><a href="https://hif.wikipedia.org/wiki/Samay" title="Samay – Fiji Hindi" lang="hif" hreflang="hif" data-title="Samay" data-language-autonym="Fiji Hindi" data-language-local-name="Fiji Hindi" class="interlanguage-link-target"><span>Fiji Hindi</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Tan" title="Tan – haićanski kreolski" lang="ht" hreflang="ht" data-title="Tan" data-language-autonym="Kreyòl ayisyen" data-language-local-name="haićanski kreolski" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Id%C5%91" title="Idő – mađarski" lang="hu" hreflang="hu" data-title="Idő" data-language-autonym="Magyar" data-language-local-name="mađarski" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%BA%D5%A1%D5%B4%D5%A1%D5%B6%D5%A1%D5%AF" title="Ժամանակ – armenski" lang="hy" hreflang="hy" data-title="Ժամանակ" data-language-autonym="Հայերեն" data-language-local-name="armenski" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Tempore" title="Tempore – interlingua" lang="ia" hreflang="ia" data-title="Tempore" data-language-autonym="Interlingua" data-language-local-name="interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Waktu" title="Waktu – indonezijski" lang="id" hreflang="id" data-title="Waktu" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonezijski" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-inh mw-list-item"><a href="https://inh.wikipedia.org/wiki/%D0%A5%D0%B0" title="Ха – ingušetski" lang="inh" hreflang="inh" data-title="Ха" data-language-autonym="ГӀалгӀай" data-language-local-name="ingušetski" class="interlanguage-link-target"><span>ГӀалгӀай</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Tempo" title="Tempo – ido" lang="io" hreflang="io" data-title="Tempo" data-language-autonym="Ido" data-language-local-name="ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/T%C3%ADmi" title="Tími – islandski" lang="is" hreflang="is" data-title="Tími" data-language-autonym="Íslenska" data-language-local-name="islandski" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Tempo" title="Tempo – talijanski" lang="it" hreflang="it" data-title="Tempo" data-language-autonym="Italiano" data-language-local-name="talijanski" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E6%99%82%E9%96%93" title="時間 – japanski" lang="ja" hreflang="ja" data-title="時間" data-language-autonym="日本語" data-language-local-name="japanski" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-jam mw-list-item"><a href="https://jam.wikipedia.org/wiki/Taim" title="Taim – Jamaican Creole English" lang="jam" hreflang="jam" data-title="Taim" data-language-autonym="Patois" data-language-local-name="Jamaican Creole English" class="interlanguage-link-target"><span>Patois</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Wektu" title="Wektu – javanski" lang="jv" hreflang="jv" data-title="Wektu" data-language-autonym="Jawa" data-language-local-name="javanski" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%93%E1%83%A0%E1%83%9D" title="დრო – gruzijski" lang="ka" hreflang="ka" data-title="დრო" data-language-autonym="ქართული" data-language-local-name="gruzijski" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kaa mw-list-item"><a href="https://kaa.wikipedia.org/wiki/Waq%C4%B1t" title="Waqıt – kara-kalpak" lang="kaa" hreflang="kaa" data-title="Waqıt" data-language-autonym="Qaraqalpaqsha" data-language-local-name="kara-kalpak" class="interlanguage-link-target"><span>Qaraqalpaqsha</span></a></li><li class="interlanguage-link interwiki-kab mw-list-item"><a href="https://kab.wikipedia.org/wiki/Akud" title="Akud – kabilski" lang="kab" hreflang="kab" data-title="Akud" data-language-autonym="Taqbaylit" data-language-local-name="kabilski" class="interlanguage-link-target"><span>Taqbaylit</span></a></li><li class="interlanguage-link interwiki-kbp mw-list-item"><a href="https://kbp.wikipedia.org/wiki/Al%C9%A9waat%CA%8B" title="Alɩwaatʋ – Kabiye" lang="kbp" hreflang="kbp" data-title="Alɩwaatʋ" data-language-autonym="Kabɩyɛ" data-language-local-name="Kabiye" class="interlanguage-link-target"><span>Kabɩyɛ</span></a></li><li class="interlanguage-link interwiki-kcg mw-list-item"><a href="https://kcg.wikipedia.org/wiki/Jen" title="Jen – tyap" lang="kcg" hreflang="kcg" data-title="Jen" data-language-autonym="Tyap" data-language-local-name="tyap" class="interlanguage-link-target"><span>Tyap</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%A3%D0%B0%D2%9B%D1%8B%D1%82" title="Уақыт – kazaški" lang="kk" hreflang="kk" data-title="Уақыт" data-language-autonym="Қазақша" data-language-local-name="kazaški" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%95%E0%B2%BE%E0%B2%B2" title="ಕಾಲ – karnatački" lang="kn" hreflang="kn" data-title="ಕಾಲ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="karnatački" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%8B%9C%EA%B0%84" title="시간 – korejski" lang="ko" hreflang="ko" data-title="시간" data-language-autonym="한국어" data-language-local-name="korejski" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Wext" title="Wext – kurdski" lang="ku" hreflang="ku" data-title="Wext" data-language-autonym="Kurdî" data-language-local-name="kurdski" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-kw mw-list-item"><a href="https://kw.wikipedia.org/wiki/Termyn" title="Termyn – kornski" lang="kw" hreflang="kw" data-title="Termyn" data-language-autonym="Kernowek" data-language-local-name="kornski" class="interlanguage-link-target"><span>Kernowek</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%A3%D0%B1%D0%B0%D0%BA%D1%8B%D1%82" title="Убакыт – kirgiski" lang="ky" hreflang="ky" data-title="Убакыт" data-language-autonym="Кыргызча" data-language-local-name="kirgiski" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-la badge-Q17437796 badge-featuredarticle mw-list-item" title="izabrani članak"><a href="https://la.wikipedia.org/wiki/Tempus" title="Tempus – latinski" lang="la" hreflang="la" data-title="Tempus" data-language-autonym="Latina" data-language-local-name="latinski" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Z%C3%A4it" title="Zäit – luksemburški" lang="lb" hreflang="lb" data-title="Zäit" data-language-autonym="Lëtzebuergesch" data-language-local-name="luksemburški" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lfn mw-list-item"><a href="https://lfn.wikipedia.org/wiki/Tempo" title="Tempo – Lingua Franca Nova" lang="lfn" hreflang="lfn" data-title="Tempo" data-language-autonym="Lingua Franca Nova" data-language-local-name="Lingua Franca Nova" class="interlanguage-link-target"><span>Lingua Franca Nova</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Tied" title="Tied – limburški" lang="li" hreflang="li" data-title="Tied" data-language-autonym="Limburgs" data-language-local-name="limburški" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-lij mw-list-item"><a href="https://lij.wikipedia.org/wiki/Tempo" title="Tempo – Ligurian" lang="lij" hreflang="lij" data-title="Tempo" data-language-autonym="Ligure" data-language-local-name="Ligurian" class="interlanguage-link-target"><span>Ligure</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Temp" title="Temp – Lombard" lang="lmo" hreflang="lmo" data-title="Temp" data-language-autonym="Lombard" data-language-local-name="Lombard" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-lo mw-list-item"><a href="https://lo.wikipedia.org/wiki/%E0%BA%A5%E0%BA%B2%E0%BA%8D%E0%BA%8A%E0%BA%B7%E0%BB%88%E0%BB%9C%E0%BB%88%E0%BA%A7%E0%BA%8D%E0%BA%99%E0%BA%B1%E0%BA%9A%E0%BB%80%E0%BA%A7%E0%BA%A5%E0%BA%B2" title="ລາຍຊື່ໜ່ວຍນັບເວລາ – laoski" lang="lo" hreflang="lo" data-title="ລາຍຊື່ໜ່ວຍນັບເວລາ" data-language-autonym="ລາວ" data-language-local-name="laoski" class="interlanguage-link-target"><span>ລາວ</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Laikas" title="Laikas – litavski" lang="lt" hreflang="lt" data-title="Laikas" data-language-autonym="Lietuvių" data-language-local-name="litavski" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Laiks" title="Laiks – latvijski" lang="lv" hreflang="lv" data-title="Laiks" data-language-autonym="Latviešu" data-language-local-name="latvijski" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mai mw-list-item"><a href="https://mai.wikipedia.org/wiki/%E0%A4%B8%E0%A4%AE%E0%A4%AF" title="समय – maithili" lang="mai" hreflang="mai" data-title="समय" data-language-autonym="मैथिली" data-language-local-name="maithili" class="interlanguage-link-target"><span>मैथिली</span></a></li><li class="interlanguage-link interwiki-map-bms mw-list-item"><a href="https://map-bms.wikipedia.org/wiki/Wektu" title="Wektu – Banyumasan" lang="jv-x-bms" hreflang="jv-x-bms" data-title="Wektu" data-language-autonym="Basa Banyumasan" data-language-local-name="Banyumasan" class="interlanguage-link-target"><span>Basa Banyumasan</span></a></li><li class="interlanguage-link interwiki-mg mw-list-item"><a href="https://mg.wikipedia.org/wiki/Fotoana" title="Fotoana – malgaški" lang="mg" hreflang="mg" data-title="Fotoana" data-language-autonym="Malagasy" data-language-local-name="malgaški" class="interlanguage-link-target"><span>Malagasy</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%92%D1%80%D0%B5%D0%BC%D0%B5" title="Време – makedonski" lang="mk" hreflang="mk" data-title="Време" data-language-autonym="Македонски" data-language-local-name="makedonski" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%95%E0%B4%BE%E0%B4%B2%E0%B4%82" title="കാലം – malajalamski" lang="ml" hreflang="ml" data-title="കാലം" data-language-autonym="മലയാളം" data-language-local-name="malajalamski" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%A5%D1%83%D0%B3%D0%B0%D1%86%D0%B0%D0%B0" title="Хугацаа – mongolski" lang="mn" hreflang="mn" data-title="Хугацаа" data-language-autonym="Монгол" data-language-local-name="mongolski" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-mni mw-list-item"><a href="https://mni.wikipedia.org/wiki/%EA%AF%83%EA%AF%87%EA%AF%9D" title="ꯃꯇꯝ – manipurski" lang="mni" hreflang="mni" data-title="ꯃꯇꯝ" data-language-autonym="ꯃꯤꯇꯩ ꯂꯣꯟ" data-language-local-name="manipurski" class="interlanguage-link-target"><span>ꯃꯤꯇꯩ ꯂꯣꯟ</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%95%E0%A4%BE%E0%A4%B3" title="काळ – marathski" lang="mr" hreflang="mr" data-title="काळ" data-language-autonym="मराठी" data-language-local-name="marathski" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Masa" title="Masa – malajski" lang="ms" hreflang="ms" data-title="Masa" data-language-autonym="Bahasa Melayu" data-language-local-name="malajski" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%A1%E1%80%81%E1%80%BB%E1%80%AD%E1%80%94%E1%80%BA" title="အချိန် – burmanski" lang="my" hreflang="my" data-title="အချိန်" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="burmanski" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-myv mw-list-item"><a href="https://myv.wikipedia.org/wiki/%D0%A8%D0%BA%D0%B0" title="Шка – mordvinski" lang="myv" hreflang="myv" data-title="Шка" data-language-autonym="Эрзянь" data-language-local-name="mordvinski" class="interlanguage-link-target"><span>Эрзянь</span></a></li><li class="interlanguage-link interwiki-mzn mw-list-item"><a href="https://mzn.wikipedia.org/wiki/%D8%AA%D9%88%D9%85" title="توم – mazanderanski" lang="mzn" hreflang="mzn" data-title="توم" data-language-autonym="مازِرونی" data-language-local-name="mazanderanski" class="interlanguage-link-target"><span>مازِرونی</span></a></li><li class="interlanguage-link interwiki-nah mw-list-item"><a href="https://nah.wikipedia.org/wiki/Cahuitl" title="Cahuitl – Nahuatl" lang="nah" hreflang="nah" data-title="Cahuitl" data-language-autonym="Nāhuatl" data-language-local-name="Nahuatl" class="interlanguage-link-target"><span>Nāhuatl</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Tiet" title="Tiet – donjonjemački" lang="nds" hreflang="nds" data-title="Tiet" data-language-autonym="Plattdüütsch" data-language-local-name="donjonjemački" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-nds-nl mw-list-item"><a href="https://nds-nl.wikipedia.org/wiki/Tied" title="Tied – donjosaksonski" lang="nds-NL" hreflang="nds-NL" data-title="Tied" data-language-autonym="Nedersaksies" data-language-local-name="donjosaksonski" class="interlanguage-link-target"><span>Nedersaksies</span></a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%B8%E0%A4%AE%E0%A4%AF" title="समय – nepalski" lang="ne" hreflang="ne" data-title="समय" data-language-autonym="नेपाली" data-language-local-name="nepalski" class="interlanguage-link-target"><span>नेपाली</span></a></li><li class="interlanguage-link interwiki-new mw-list-item"><a href="https://new.wikipedia.org/wiki/%E0%A4%88_(%E0%A4%95%E0%A4%BE%E0%A4%B2)" title="ई (काल) – newari" lang="new" hreflang="new" data-title="ई (काल)" data-language-autonym="नेपाल भाषा" data-language-local-name="newari" class="interlanguage-link-target"><span>नेपाल भाषा</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Tijd" title="Tijd – nizozemski" lang="nl" hreflang="nl" data-title="Tijd" data-language-autonym="Nederlands" data-language-local-name="nizozemski" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Tid" title="Tid – norveški nynorsk" lang="nn" hreflang="nn" data-title="Tid" data-language-autonym="Norsk nynorsk" data-language-local-name="norveški nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Tid" title="Tid – norveški bokmål" lang="nb" hreflang="nb" data-title="Tid" data-language-autonym="Norsk bokmål" data-language-local-name="norveški bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-nov mw-list-item"><a href="https://nov.wikipedia.org/wiki/Tempe" title="Tempe – Novial" lang="nov" hreflang="nov" data-title="Tempe" data-language-autonym="Novial" data-language-local-name="Novial" class="interlanguage-link-target"><span>Novial</span></a></li><li class="interlanguage-link interwiki-nso mw-list-item"><a href="https://nso.wikipedia.org/wiki/Nako" title="Nako – sjeverni sotski" lang="nso" hreflang="nso" data-title="Nako" data-language-autonym="Sesotho sa Leboa" data-language-local-name="sjeverni sotski" class="interlanguage-link-target"><span>Sesotho sa Leboa</span></a></li><li class="interlanguage-link interwiki-ny mw-list-item"><a href="https://ny.wikipedia.org/wiki/Nthawi" title="Nthawi – njandža" lang="ny" hreflang="ny" data-title="Nthawi" data-language-autonym="Chi-Chewa" data-language-local-name="njandža" class="interlanguage-link-target"><span>Chi-Chewa</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Temps" title="Temps – okcitanski" lang="oc" hreflang="oc" data-title="Temps" data-language-autonym="Occitan" data-language-local-name="okcitanski" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-olo mw-list-item"><a href="https://olo.wikipedia.org/wiki/Aigu" title="Aigu – Livvi-Karelian" lang="olo" hreflang="olo" data-title="Aigu" data-language-autonym="Livvinkarjala" data-language-local-name="Livvi-Karelian" class="interlanguage-link-target"><span>Livvinkarjala</span></a></li><li class="interlanguage-link interwiki-om mw-list-item"><a href="https://om.wikipedia.org/wiki/Yeroo" title="Yeroo – oromski" lang="om" hreflang="om" data-title="Yeroo" data-language-autonym="Oromoo" data-language-local-name="oromski" class="interlanguage-link-target"><span>Oromoo</span></a></li><li class="interlanguage-link interwiki-or mw-list-item"><a href="https://or.wikipedia.org/wiki/%E0%AC%B8%E0%AC%AE%E0%AD%9F_(%E0%AC%95%E0%AC%BE%E0%AC%B3)" title="ସମୟ (କାଳ) – orijski" lang="or" hreflang="or" data-title="ସମୟ (କାଳ)" data-language-autonym="ଓଡ଼ିଆ" data-language-local-name="orijski" class="interlanguage-link-target"><span>ଓଡ଼ିଆ</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%B8%E0%A8%AE%E0%A8%BE%E0%A8%82" title="ਸਮਾਂ – pandžapski" lang="pa" hreflang="pa" data-title="ਸਮਾਂ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="pandžapski" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pcd mw-list-item"><a href="https://pcd.wikipedia.org/wiki/Tans" title="Tans – Picard" lang="pcd" hreflang="pcd" data-title="Tans" data-language-autonym="Picard" data-language-local-name="Picard" class="interlanguage-link-target"><span>Picard</span></a></li><li class="interlanguage-link interwiki-pih mw-list-item"><a href="https://pih.wikipedia.org/wiki/Tiem" title="Tiem – Norfuk / Pitkern" lang="pih" hreflang="pih" data-title="Tiem" data-language-autonym="Norfuk / Pitkern" data-language-local-name="Norfuk / Pitkern" class="interlanguage-link-target"><span>Norfuk / Pitkern</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Czas" title="Czas – poljski" lang="pl" hreflang="pl" data-title="Czas" data-language-autonym="Polski" data-language-local-name="poljski" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/Temp" title="Temp – Piedmontese" lang="pms" hreflang="pms" data-title="Temp" data-language-autonym="Piemontèis" data-language-local-name="Piedmontese" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D9%88%DB%8C%D9%84%D8%A7" title="ویلا – Western Punjabi" lang="pnb" hreflang="pnb" data-title="ویلا" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-ps mw-list-item"><a href="https://ps.wikipedia.org/wiki/%D9%88%D8%AE%D8%AA" title="وخت – paštunski" lang="ps" hreflang="ps" data-title="وخت" data-language-autonym="پښتو" data-language-local-name="paštunski" class="interlanguage-link-target"><span>پښتو</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Tempo" title="Tempo – portugalski" lang="pt" hreflang="pt" data-title="Tempo" data-language-autonym="Português" data-language-local-name="portugalski" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-qu mw-list-item"><a href="https://qu.wikipedia.org/wiki/Mit%27awi" title="Mit'awi – kečuanski" lang="qu" hreflang="qu" data-title="Mit'awi" data-language-autonym="Runa Simi" data-language-local-name="kečuanski" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Timp" title="Timp – rumunjski" lang="ro" hreflang="ro" data-title="Timp" data-language-autonym="Română" data-language-local-name="rumunjski" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%92%D1%80%D0%B5%D0%BC%D1%8F" title="Время – ruski" lang="ru" hreflang="ru" data-title="Время" data-language-autonym="Русский" data-language-local-name="ruski" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-rue mw-list-item"><a href="https://rue.wikipedia.org/wiki/%D0%A7%D0%B0%D1%81" title="Час – Rusyn" lang="rue" hreflang="rue" data-title="Час" data-language-autonym="Русиньскый" data-language-local-name="Rusyn" class="interlanguage-link-target"><span>Русиньскый</span></a></li><li class="interlanguage-link interwiki-sah mw-list-item"><a href="https://sah.wikipedia.org/wiki/%D0%9A%D1%8D%D0%BC" title="Кэм – jakutski" lang="sah" hreflang="sah" data-title="Кэм" data-language-autonym="Саха тыла" data-language-local-name="jakutski" class="interlanguage-link-target"><span>Саха тыла</span></a></li><li class="interlanguage-link interwiki-sat mw-list-item"><a href="https://sat.wikipedia.org/wiki/%E1%B1%9A%E1%B1%A0%E1%B1%9B%E1%B1%9A" title="ᱚᱠᱛᱚ – santalski" lang="sat" hreflang="sat" data-title="ᱚᱠᱛᱚ" data-language-autonym="ᱥᱟᱱᱛᱟᱲᱤ" data-language-local-name="santalski" class="interlanguage-link-target"><span>ᱥᱟᱱᱛᱟᱲᱤ</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Tempu" title="Tempu – sicilijski" lang="scn" hreflang="scn" data-title="Tempu" data-language-autonym="Sicilianu" data-language-local-name="sicilijski" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Time" title="Time – škotski" lang="sco" hreflang="sco" data-title="Time" data-language-autonym="Scots" data-language-local-name="škotski" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%D9%88%D9%82%D8%AA" title="وقت – sindski" lang="sd" hreflang="sd" data-title="وقت" data-language-autonym="سنڌي" data-language-local-name="sindski" class="interlanguage-link-target"><span>سنڌي</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Vreme" title="Vreme – srpsko-hrvatski" lang="sh" hreflang="sh" data-title="Vreme" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="srpsko-hrvatski" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%9A%E0%B7%8F%E0%B6%BD%E0%B6%BA" title="කාලය – sinhaleški" lang="si" hreflang="si" data-title="කාලය" data-language-autonym="සිංහල" data-language-local-name="sinhaleški" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Time" title="Time – Simple English" lang="en-simple" hreflang="en-simple" data-title="Time" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/%C4%8Cas_(fyzika)" title="Čas (fyzika) – slovački" lang="sk" hreflang="sk" data-title="Čas (fyzika)" data-language-autonym="Slovenčina" data-language-local-name="slovački" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/%C4%8Cas" title="Čas – slovenski" lang="sl" hreflang="sl" data-title="Čas" data-language-autonym="Slovenščina" data-language-local-name="slovenski" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-smn mw-list-item"><a href="https://smn.wikipedia.org/wiki/%C3%84igi" title="Äigi – inari sami" lang="smn" hreflang="smn" data-title="Äigi" data-language-autonym="Anarâškielâ" data-language-local-name="inari sami" class="interlanguage-link-target"><span>Anarâškielâ</span></a></li><li class="interlanguage-link interwiki-sn mw-list-item"><a href="https://sn.wikipedia.org/wiki/Nguva" title="Nguva – shona" lang="sn" hreflang="sn" data-title="Nguva" data-language-autonym="ChiShona" data-language-local-name="shona" class="interlanguage-link-target"><span>ChiShona</span></a></li><li class="interlanguage-link interwiki-so mw-list-item"><a href="https://so.wikipedia.org/wiki/Wakhti" title="Wakhti – somalski" lang="so" hreflang="so" data-title="Wakhti" data-language-autonym="Soomaaliga" data-language-local-name="somalski" class="interlanguage-link-target"><span>Soomaaliga</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Koha" title="Koha – albanski" lang="sq" hreflang="sq" data-title="Koha" data-language-autonym="Shqip" data-language-local-name="albanski" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%92%D1%80%D0%B5%D0%BC%D0%B5" title="Време – srpski" lang="sr" hreflang="sr" data-title="Време" data-language-autonym="Српски / srpski" data-language-local-name="srpski" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-stq mw-list-item"><a href="https://stq.wikipedia.org/wiki/Tied" title="Tied – Saterland Frisian" lang="stq" hreflang="stq" data-title="Tied" data-language-autonym="Seeltersk" data-language-local-name="Saterland Frisian" class="interlanguage-link-target"><span>Seeltersk</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Waktu" title="Waktu – sundanski" lang="su" hreflang="su" data-title="Waktu" data-language-autonym="Sunda" data-language-local-name="sundanski" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Tid" title="Tid – švedski" lang="sv" hreflang="sv" data-title="Tid" data-language-autonym="Svenska" data-language-local-name="švedski" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Wakati" title="Wakati – svahili" lang="sw" hreflang="sw" data-title="Wakati" data-language-autonym="Kiswahili" data-language-local-name="svahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-szl mw-list-item"><a href="https://szl.wikipedia.org/wiki/Czas" title="Czas – Silesian" lang="szl" hreflang="szl" data-title="Czas" data-language-autonym="Ślůnski" data-language-local-name="Silesian" class="interlanguage-link-target"><span>Ślůnski</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%A8%E0%AF%87%E0%AE%B0%E0%AE%AE%E0%AF%8D" title="நேரம் – tamilski" lang="ta" hreflang="ta" data-title="நேரம்" data-language-autonym="தமிழ்" data-language-local-name="tamilski" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%B8%E0%B0%AE%E0%B0%AF%E0%B0%82" title="సమయం – teluški" lang="te" hreflang="te" data-title="సమయం" data-language-autonym="తెలుగు" data-language-local-name="teluški" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-tg mw-list-item"><a href="https://tg.wikipedia.org/wiki/%D0%97%D0%B0%D0%BC%D0%BE%D0%BD" title="Замон – tadžički" lang="tg" hreflang="tg" data-title="Замон" data-language-autonym="Тоҷикӣ" data-language-local-name="tadžički" class="interlanguage-link-target"><span>Тоҷикӣ</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%80%E0%B8%A7%E0%B8%A5%E0%B8%B2" title="เวลา – tajlandski" lang="th" hreflang="th" data-title="เวลา" data-language-autonym="ไทย" data-language-local-name="tajlandski" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tk mw-list-item"><a href="https://tk.wikipedia.org/wiki/Wagt" title="Wagt – turkmenski" lang="tk" hreflang="tk" data-title="Wagt" data-language-autonym="Türkmençe" data-language-local-name="turkmenski" class="interlanguage-link-target"><span>Türkmençe</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Panahon" title="Panahon – tagalog" lang="tl" hreflang="tl" data-title="Panahon" data-language-autonym="Tagalog" data-language-local-name="tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Zaman" title="Zaman – turski" lang="tr" hreflang="tr" data-title="Zaman" data-language-autonym="Türkçe" data-language-local-name="turski" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%92%D0%B0%D0%BA%D1%8B%D1%82" title="Вакыт – tatarski" lang="tt" hreflang="tt" data-title="Вакыт" data-language-autonym="Татарча / tatarça" data-language-local-name="tatarski" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-udm mw-list-item"><a href="https://udm.wikipedia.org/wiki/%D0%94%D1%8B%D1%80" title="Дыр – udmurtski" lang="udm" hreflang="udm" data-title="Дыр" data-language-autonym="Удмурт" data-language-local-name="udmurtski" class="interlanguage-link-target"><span>Удмурт</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A7%D0%B0%D1%81" title="Час – ukrajinski" lang="uk" hreflang="uk" data-title="Час" data-language-autonym="Українська" data-language-local-name="ukrajinski" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D9%88%D9%82%D8%AA" title="وقت – urdski" lang="ur" hreflang="ur" data-title="وقت" data-language-autonym="اردو" data-language-local-name="urdski" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Vaqt" title="Vaqt – uzbečki" lang="uz" hreflang="uz" data-title="Vaqt" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbečki" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vec mw-list-item"><a href="https://vec.wikipedia.org/wiki/Tenpo" title="Tenpo – Venetian" lang="vec" hreflang="vec" data-title="Tenpo" data-language-autonym="Vèneto" data-language-local-name="Venetian" class="interlanguage-link-target"><span>Vèneto</span></a></li><li class="interlanguage-link interwiki-vep mw-list-item"><a href="https://vep.wikipedia.org/wiki/Aig" title="Aig – Veps" lang="vep" hreflang="vep" data-title="Aig" data-language-autonym="Vepsän kel’" data-language-local-name="Veps" class="interlanguage-link-target"><span>Vepsän kel’</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Th%E1%BB%9Di_gian" title="Thời gian – vijetnamski" lang="vi" hreflang="vi" data-title="Thời gian" data-language-autonym="Tiếng Việt" data-language-local-name="vijetnamski" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-vls mw-list-item"><a href="https://vls.wikipedia.org/wiki/Tyd" title="Tyd – West Flemish" lang="vls" hreflang="vls" data-title="Tyd" data-language-autonym="West-Vlams" data-language-local-name="West Flemish" class="interlanguage-link-target"><span>West-Vlams</span></a></li><li class="interlanguage-link interwiki-vo mw-list-item"><a href="https://vo.wikipedia.org/wiki/Tim" title="Tim – volapük" lang="vo" hreflang="vo" data-title="Tim" data-language-autonym="Volapük" data-language-local-name="volapük" class="interlanguage-link-target"><span>Volapük</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Oras_(pisika)" title="Oras (pisika) – waray" lang="war" hreflang="war" data-title="Oras (pisika)" data-language-autonym="Winaray" data-language-local-name="waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E8%BE%B0%E5%85%89" title="辰光 – wu kineski" lang="wuu" hreflang="wuu" data-title="辰光" data-language-autonym="吴语" data-language-local-name="wu kineski" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-xal mw-list-item"><a href="https://xal.wikipedia.org/wiki/%D0%A6%D0%B0%D0%B3" title="Цаг – kalmyk" lang="xal" hreflang="xal" data-title="Цаг" data-language-autonym="Хальмг" data-language-local-name="kalmyk" class="interlanguage-link-target"><span>Хальмг</span></a></li><li class="interlanguage-link interwiki-xmf mw-list-item"><a href="https://xmf.wikipedia.org/wiki/%E1%83%91%E1%83%9D%E1%83%A0%E1%83%AF%E1%83%98" title="ბორჯი – Mingrelian" lang="xmf" hreflang="xmf" data-title="ბორჯი" data-language-autonym="მარგალური" data-language-local-name="Mingrelian" class="interlanguage-link-target"><span>მარგალური</span></a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%A6%D7%99%D7%99%D7%98" title="צייט – jidiš" lang="yi" hreflang="yi" data-title="צייט" data-language-autonym="ייִדיש" data-language-local-name="jidiš" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li class="interlanguage-link interwiki-yo mw-list-item"><a href="https://yo.wikipedia.org/wiki/%C3%80s%C3%ACk%C3%B2" title="Àsìkò – jorupski" lang="yo" hreflang="yo" data-title="Àsìkò" data-language-autonym="Yorùbá" data-language-local-name="jorupski" class="interlanguage-link-target"><span>Yorùbá</span></a></li><li class="interlanguage-link interwiki-za mw-list-item"><a href="https://za.wikipedia.org/wiki/Seizgan" title="Seizgan – zhuang" lang="za" hreflang="za" data-title="Seizgan" data-language-autonym="Vahcuengh" data-language-local-name="zhuang" class="interlanguage-link-target"><span>Vahcuengh</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E6%97%B6%E9%97%B4" title="时间 – kineski" lang="zh" hreflang="zh" data-title="时间" data-language-autonym="中文" data-language-local-name="kineski" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-classical mw-list-item"><a href="https://zh-classical.wikipedia.org/wiki/%E6%99%82" title="時 – Literary Chinese" lang="lzh" hreflang="lzh" data-title="時" data-language-autonym="文言" data-language-local-name="Literary Chinese" class="interlanguage-link-target"><span>文言</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/S%C3%AE-kan" title="Sî-kan – min nan kineski" lang="nan" hreflang="nan" data-title="Sî-kan" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="min nan kineski" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E6%99%82%E9%96%93" title="時間 – kantonski" lang="yue" hreflang="yue" data-title="時間" data-language-autonym="粵語" data-language-local-name="kantonski" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-zu mw-list-item"><a href="https://zu.wikipedia.org/wiki/Isikhathi" title="Isikhathi – zulu" lang="zu" hreflang="zu" data-title="Isikhathi" data-language-autonym="IsiZulu" data-language-local-name="zulu" class="interlanguage-link-target"><span>IsiZulu</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q11471#sitelinks-wikipedia" title="Poveznice na druge jezike" class="wbc-editpage">Uredi poveznice</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Imenski prostori"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Vrijeme_(fizika)" title="Pogledaj sadržaj [c]" accesskey="c"><span>Stranica</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Razgovor:Vrijeme_(fizika)" rel="discussion" title="Razgovorna stranica [t]" accesskey="t"><span>Razgovor</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" 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Omogućava unošenje razloga u sažetak.">ukloni ovu izmjenu</a></span></strong></div><div id="mw-diff-ntitle2"><a href="/wiki/Suradnik:Ivi104" class="mw-userlink" title="Suradnik:Ivi104" data-mw-revid="7073795"><bdi>Ivi104</bdi></a> <span class="mw-usertoollinks">(<a href="/wiki/Razgovor_sa_suradnikom:Ivi104" class="mw-usertoollinks-talk" title="Razgovor sa suradnikom:Ivi104">razgovor</a> | <a href="/wiki/Posebno:Doprinosi/Ivi104" class="mw-usertoollinks-contribs" title="Posebno:Doprinosi/Ivi104">doprinosi</a>)</span><div class="mw-diff-usermetadata"><div class="mw-diff-userroles"><a href="/wiki/Wikipedija:Automatski_opho%C4%91eni" title="Wikipedija:Automatski ophođeni">Automatski ophođeni suradnici</a>, <a href="/wiki/Wikipedija:Administratori_su%C4%8Delja" title="Wikipedija:Administratori sučelja">Administratori sučelja</a>, <a href="/wiki/Wikipedija:Ophoditelji" title="Wikipedija:Ophoditelji">Ophoditelji</a>, <a href="/wiki/Wikipedija:Administratori" title="Wikipedija:Administratori">Administratori</a></div><div class="mw-diff-usereditcount"><span>21.077</span> edits</div></div></div><div id="mw-diff-ntitle3"><abbr class="minoredit" title="Manja izmjena">m</abbr> <span class="comment comment--without-parentheses">−<a href="/wiki/Kategorija:Fizika" title="Kategorija:Fizika">Kategorija:Fizika</a>; −<a href="/wiki/Kategorija:Fizikalne_veli%C4%8Dine" title="Kategorija:Fizikalne veličine">Kategorija:Fizikalne veličine</a> uz pomoć dodatka <a href="/wiki/Wikipedija:HotCat" title="Wikipedija:HotCat">HotCat</a></span></div><div id="mw-diff-ntitle5"></div><div id="mw-diff-ntitle4"> </div></td> </tr><tr><td colspan="4" class="diff-multi" lang="hr">(Nije prikazano 46 međuinačica jednog suradnika)</td></tr><tr> <td colspan="2" class="diff-lineno">Redak 1:</td> <td colspan="2" class="diff-lineno">Redak 1:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>{{Klasična mehanika}}</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>{{Klasična mehanika}}</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>'''Vrijeme''' (simbol '''''t''')'' je fizikalna veličina kojom se mjeri trajanje nekog događaja, a samim tim i trajanje nekog kretanja. Nakon [[Albert Einstein|Einsteinovih]] radova, vrijeme postaje [[dimenzija]] [[prostor]]a, koja se dodaje na prethodne tri dimenzije, čime prostor postaje četvorodimenzionalan. Samim tim dolazi do njihovog sjedinjavanja u termin prostorno-vremenski kontinuitet ([[prostorvrijeme]]). Nakon toga slijedi ideja koja postaje zastupljena, a to je da je kretanje u vremenu jednako moguće kao i kretanje u prve tri dimenzije. </div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[datoteka:MontreGousset001.jpg|mini|desno|300px|[[Sat (instrument)|Sat]] mjeri vrijeme.]]</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div></div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[datoteka:Old Pendulum clock.jpg|desno|mini|300px|Sat s klatnom ([[njihalo]]m) ili ura njihalica.]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[datoteka:Clepsydra-Diagram-Fancy.jpeg|mini|desno|300px|Prikaz [[vodeni sat|vodenog sata]] kojeg je napravio [[Ktesibije Aleksandrijski]] u 3. stoljeću pr. Kr. ]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>'''Vrijeme''', u [[fizika|fizici]], je temeljna [[Mjerna veličina|fizikalna veličin]]a koja obilježava trajanje zbivanja ili razmak između dvaju događaja. Vrijeme omogućuje razlikovanje dvaju inače potpuno istih događaja u istoj točki [[prostor]]a. Razmak ([[udaljenost]]) između tih događaja služi kao osnova za [[mjerenje]] vremena. Događanje, promjena i [[gibanje]] ne mogu se shvatiti bez vremena. Vrijeme se može uočiti samo po promjeni događanja. Mnoge se [[Pojava|pojave]] u [[priroda|prirodi]] pravilno ponavljaju i mogu poslužiti za određivanje vremena. Tako se na primjer [[Zemljina rotacija|Zemljinom vrtnjom]] oko njezine [[os]]i određuje vrijeme od jednoga [[dan]]a, a njezinim [[Zemljina putanja|gibanjem oko Sunca]] vrijeme od jedne [[godina|godine]]. Na načelu [[njihalo|njihala]] konstruirana je [[Sat (instrument)|ura njihalica]]. Za određivanje vremena služe i druge naprave, na primjer [[pješčani sat]], [[vodeni sat]], mehanički sat, [[Digitalizacija|digitalni]] sat, [[atomski sat]] i drugo. S pomoću vremena i prostora (prijeđenoga puta) određuje se [[brzina]] gibanja.<ref> '''vrijeme''', [http://www.enciklopedija.hr/Natuknica.aspx?ID=65498] "Hrvatska enciklopedija", Leksikografski zavod Miroslav Krleža, www.enciklopedija.hr, 2015.</ref></div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Filozofska razmatranja o prirodi vremena mogu se ugrubo razvrstati u dva suprotstavljena stajališta. Prema jednome (koje odgovara na primjer [[Isaac Newton|Newtonovim]] predodžbama), vrijeme je dio stvarne i fundamentalne strukture [[svemir]]a: ono je [[dimenzija]] svemira u kojoj se događaji odvijaju nekim redoslijedom – i nije ovisno o tim događajima. Prema drugom stajalištu (koje uglavnom odgovara [[Gottfried Leibniz|Leibnizovim]] i [[Immanuel Kant|Kantovim]] nazorima), vrijeme je samo dio čovjekovog intelektualnog aparata, način na koji ljudska svijest percipira i tumači događaje. U fizikalnim razmatranjima prirode vremena dominira prvo stajalište (premda ima i pokušaja alternativnih tumačenja). Vrijeme je fundamentalna dimenzija svemira, duž koje su događaji poredani od prošlosti prema budućnosti. Pomoću vremena se mjeri "gdje" se u tome poretku događaj nalazi (kada, to jest u kojem ''trenutku'' se zbiva), te koliki su razmaci između događaja ili trajanje procesa (koliko su "dugački" ''vremenski intervali''). Usto, razvoj fizike u [[Albert Einstein|Einsteinovo]] doba je pokazao kako opažanja trenutaka i intervala mogu ovisiti o promatraču koji ih mjeri.</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[Isaac Newton]] je smatrao da je vrijeme "apsolutno", to jest da teče jednako za sve promatrače. [[Klasična mehanika]] (preciznije, ''nerelativistička klasična mehanika'') je utemeljena na Newtonovom konceptu vremena. Da bi protumačio neka opažanja s kraja 19. stoljeća, [[Albert Einstein]] je u svojoj specijalnoj [[Teorija relativnosti|teoriji relativnosti]] postulirao jednakost iznosa [[brzina svjetlosti|brzine svjetlosti]] (u [[vakuum]]u) za sve promatrače, te pokazao da zbog toga oni neće na isti način opažati prostor i vrijeme. Mjerenja prostora i vremena postaju zbog toga međuovisna, zbog čega se u fiziku uvodi koncept četverodimenzionalnog prostorno-vremenskog kontinuuma ([[prostorvrijeme]]).</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>==Trenutak i vremenski interval==</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Za operativno korištenje koncepta vremena u fizici (jednako u klasičnoj i relativističkoj) i u drugim znanostima i primjenama, nužno je jasno razlikovati pojam "trenutak" od pojma "vremenski interval". U svakodnevnom govoru, termin "vrijeme" (u gore navedenome [[fizika|fizikalnom smislu]]) često se koristi tako kao da ta razlika ne postoji.</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>===Trenutak===</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>'''Trenutak''' se označava simbolom ''t'' i često se opisuje kao "točka u vremenu". Taj se opis temelji na analogiji s prostornom dimenzijom koju opisujemo na primjer pomoću koordinatne osi "x" [[Kartezijev koordinatni sustav|Kartezijevog sustava]]. Kao što ''x'' predstavlja položaj ili koordinatu ("točku u prostoru") na toj osi, tako je ''t'' koordinata ili "točka" duž analogne koordinatne osi "t". Na toj se analogiji temelji grafički prikaz (pa i razumijevanje) veličina koje su "funkcije vremena".</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Jednostavnije je, međutim, objasniti pojam trenutka pomoću uređaja za mjerenje vremena, kao što je sat na slici desno. Trenutak je ono što upravo pokazuje taj sat, to jest 6 [[sat]]i i 8 [[minuta]] (približno).</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Jasno je da "sadašnji" trenutak ovisi o tome kada je bio "početni trenutak" ''t = 0'' (na takvome satu početni trenutak je u 12 sati). Još bolji primjer je zaporna ura ("štoperica"). Kod nje biramo početni trenutak ''t = 0'' (to jest "ishodište za mjerenje vremena") kada je aktiviramo. Svaka brojka koju nakon toga pokaže kazaljka (ili se ispiše na ekranu) je "tadašnji" trenutak ''t''.</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Tako pojedini trenutak ''t'', iako sam nema trajanja, pokazuje koliko je vremena proteklo od odabranog (dogovorenog) početnog trenutka ''t = 0''. Naravno, vrijeme je postojalo i prije takvoga proizvoljno odabranoga početnog trenutka, kao što je uključivanje zaporne ure. Ti raniji trenutci opisuju se negativnim brojevima, na primjer trenutak ''t = -3s'' zbio se 3 sekunde prije trenutka ''t = 0''. U povijesnom opisu vremena pomoću [[Gregorijanski kalendar|Gregorijanskog kalendara]], umjesto "negativnih" godina koristi se oznaka ''prije Krista'' ili ''prije nove ere''.</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>"Apsolutni" svemirski početni trenutak ''t = 0'', prema fizikalnoj teoriji [[Veliki prasak|velikog praska]] i s njom povezanim mjerenjima<ref>N. Jarosik et al (2011). "Seven-year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Sky Maps, Systematic Errors, and Basic Results". "The Astrophysical Journal Supplement Series" 192</ref> desio se prije približno 13,75 milijardi godina. Tada, grubo govoreći, zajedno sa svemirom nastaje i prostor i vrijeme, te nema ranijih ("negativnih") trenutaka.</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>=== Vremenski interval ===</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>'''Vremenski interval''' opisuje koliko je vremena proteklo između neka dva trenutka. Primjerice, između nekog (prvog) trenutka ''t<sub>1</sub>=3s'' koji je pokazala zaporna ura, i drugog trenutka ''t<sub>2</sub> = 8s'' koji je kasnije pokazala, proteklo je 5 [[sekunda|sekundi]], što se formalno dobiva oduzimanjem ''t<sub>2</sub> – t<sub>1</sub>''. Uobičajeno je razliku vrijednosti (ili promjenu vrijednosti) obilježavati simbolom <math>\scriptstyle \Delta </math>, pa se zato za vremenski interval koristi oznaka <math>\scriptstyle \Delta t </math>:</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>:::<math> \Delta t=t_2-t_1</math>.</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>U specijalnom slučaju kada je prvi trenutak jednak nuli (''t<sub>1</sub> = 0''), a drugi trenutak se označi kao ''t'' (umjesto ''t<sub>2</sub>''), dobije se jednakost <math>\scriptstyle \Delta t=t</math>. Time se može pravdati zamjena simbola za ''vremenski interval'' sa simbolom za ''trenutak u vremenu'', koja je uobičajena u nekim formulama u uvodnim tumačenjima fizikalnih pojava. No, pritom ipak treba upozoriti na smisao simbola: vremenski interval označava ''koliko nešto traje'', dok trenutak označava ''kada se nešto dogodilo''.</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>== Vrijeme u astronomiji ==</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[datoteka:Sidereal day (prograde).png|mini|desno|300px|[[Sinodički dan]] ('''Sunčev dan''') je duži od [[siderički dan|sideričkog dana]] ('''zvjezdani dan'''). U vremenu od 1 do 2, [[Zemlja]] se potpuno [[Zemljina rotacija|okrene oko svoje osi]] vrtnje za 360° (1→2 = siderički ili zvjezdani dan). Ali tek otprilike 4 minute kasnije u položaju 3, Zemlja je dosegla [[kulminacija|kulminaciju]] (podne) u odnosu na Sunce (1→3 = sinodički ili Sunčev dan).]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[datoteka:Nebeska sfera 4.jpg|mini|desno|300px|[[Zemljina rotacija|Zemljina vrtnja]] uzrok je prividnom okretanju [[nebeska sfera|nebeske sfere]] i izmjene [[dan]]a i [[noć]]i.]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[datoteka:Four season croatian infotext.svg|mini|desno|300px|Prikaz položaja [[Zemlja|Zemlje]] i [[Sunce|Sunca]] za 4 [[godišnja doba]].]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[datoteka:Nebeska sfera 3.png|mini|desno|300px|[[Nebeski ekvator]] i [[ekliptika]].]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[datoteka:Jednadzba vremena.png|mini|desno|300px|[[Jednadžba vremena]] prikazuje razliku pravog i srednjeg Sunčeva vremena.]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[datoteka:World Time Zones Map.png|mini|desno|300px|Karta [[Vremenska zona|vremenskih zona]] svijeta (od siječnja 2015).]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[datoteka:Praezession.svg|mini|desno|300px|[[Nebeska sfera|Nebeski svod]] se kreće po [[krivulja|krivulji]], koja je [[rezultanta]] uzajamnog djelovanja [[Zemljina rotacija|rotacije]] (zeleno), Zemljine precesije (plavo) i [[nutacija|nutacije]] (crveno).]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[datoteka:Earth precession.svg|mini|desno|300px|[[Zemljina precesija]].]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Vrijeme, u [[astronomija|astronomiji]], je klasično praćenje tijeka vremena i određivanje vremenskih jedinica postizalo se opažanjem periodičnih promjena položaja [[Sunce|Sunca]] i drugih [[nebesko tijelo|nebeskih tijela]] na [[nebeska sfera|nebeskoj sferi]] ([[dan]]; [[godina]]; sunčano vrijeme). Utjecaj [[eliptičnost]]i [[Zemljina putanja|Zemljine staze]] korigirao se [[Jednadžba vremena|jednadžbom vremena]]. Razvoj preciznijih [[Astronomski instrumenti|astronomskih i, općenito, fizikalnih instrumenata]] i metoda uvjetovao je određivanje apsolutne veličine vremenskoga trajanja ([[sekunda]]), prema kojoj se izračunavaju (mjere) klasične vremenske jedinice. Danas se sekunda određuje s pomoću 350 [[Atomski sat|atomskih satova]] smještenih na 66 mjesta na [[Zemlja|Zemlji]], kojima se rad koordinira u [[Međunarodni ured za mjere i utege|Međunarodnom uredu za utege i mjer]]e u Sèvresu u [[Francuska|Francuskoj]] (BIPM). Na temelju toga određuje se trajanje sekunde i takozvano [[međunarodno atomsko vrijeme]] (TAI) te iz njega [[univerzalno vrijeme]] (UTC) kao temelj za sva mjerenja i za takozvano građansko vrijeme, mjesna vremena, vremenske zone te različita službena vremena.</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>=== Sunčevo i zvjezdano vrijeme ===</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>U svakodnevnom djelovanju najvažnije razdoblje vremena određeno je izmjenom [[svjetlost]]i i tame (dnevnom izmjenom osunčenja ili [[Insolacija|insolacije]]). Položaj [[Sunce|Sunca]] na [[nebeska sfera|nebeskoj sferi]] predstavlja kazaljku pomoću koje se ustanovljuje doba dana. Računanje [[Vrijeme (fizika)|vremena]] dana počinje u ponoć, u času kada se Sunce nalazi u [[kulminacija|donjoj kulminaciji]]. '''Sunčev dan''' ([[sinodički dan]]) je vrijeme koje proteče između Sunčeve dvije uzastopne istovjetne [[kulminacija|kulminacije]] (gornje u podne ili donje u ponoć). Slično tome, '''zvjezdani dan''' (siderički dan) je vrijeme u kojemu puni okret učini neka [[zvijezda]], ili točnije rečeno [[proljetna točka]]. Sunčevo vrijeme služi za svakodnevne životne djelatnosti. Znajući trenutak Sunčeva vremena, u stanju smo odrediti položaj Sunca na nebu. Možda nam se čini da to nije problem, jer se Sunce iznad [[obzor]]a lako ugleda. No kod zvijezda nije tako. Zvijezde su mnogo manjeg sjaja nego Sunce. Zvjezdano vrijeme potrebno je da bi se odredio položaj zvijezda, a osim u [[astronomija|astronomiji]], primjenjuje se u [[Geodezija|geodeziji]] i [[navigacija|navigaciji]].<ref>[[Vladis Vujnović]] : "Astronomija", Školska knjiga, 1989.</ref></div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>==== Zvjezdano vrijeme ====</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Kazaljka zvjezdanog vremena je [[proljetna točka]]. Zvjezdano vrijeme jednako je satnom kutu proljetne točke. Zvjezdani dan počinje kada se proljetna točka nalazi u gornjoj kulminaciji. Zvjezdano vrijeme povezano je u svakom času sa satnim kutom i [[Rektascenzija|rektascenzijom]] zvijezde. Ono je ograničeno time na razdoblje od 0 do 24 h. Zvjezdano vrijeme teče onoliko jednoliko koliko se jednoliko [[Zemljina rotacija|Zemlja okreće]]. Tok zvjezdanog vremena određen je samo Zemljinom vrtnjom u odnosu na zvijezde. U toku vremena postoje male promjene. Razlozi tih promjena trojaki su. Jedan je učinak [[Morske mijene|plime]]. Pri gibanju plimnih valova dolazi do [[trenje|trenja]] između [[more|vodenih masa]] i dna. Trenjem se gubi dio [[kinetička energija|kinetičke energije]] vrtnje pa se ona usporava. Pojava se očituje u stoljetnim razmacima. Zatim, postoje sezonske promjene brzine vrtnje jer se ovisno o [[godišnja doba|godišnjem dobu]] mijenjaju jačine i smjerovi [[vjetar|vjetrova]] te [[Morska struja|morskih struja]]. Stoga se vrtnja i usporava i ubrzava u toku godine, ovisno o tome pomažu li strujanja Zemljinoj vrtnji ili odmažu. Treći razlog krije se u gibanjima u [[Zemljina jezgra|Zemljinoj unutrašnjosti]] i u fizičkom prostoru Zemljine okoline. </div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Sunčev dan zadan je ne samo Zemljinom vrtnjom oko vlastite osi, već i [[Zemljina putanja|Zemljinom godišnjom putanjom]] oko Sunca. Pritom Zemlja učini jedan okret više oko svoje osi, s obzirom na proljetnu točku (ili zvijezde) nego s obzirom na Sunce. Obilaženje oko Sunca čini jedan dodatni okret Zemlje prema sustavu zvijezda. To znači da će broj zvjezdanih dana u Sunčevoj (tropskoj) godini biti za jedinicu veći od broja Sunčevih dana u Sunčevoj godini:</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>:'''(''T'' + 1) zvjezdani dan = ''T'' Sunčev dan'''</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>gdje je ''T'' – [[Tropska godina|Sunčeva ili tropska godina]] koja iznosi 365 d 5 h 48 min 46 s = 365,24219 d, pa dobivamo :</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>:1 zvjezdani dan = 23 h 56 min 4 s</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Zvjezdani dan dijeli se sam po sebi u 24h zvjezdanog vremena, a sati, minute i sekunde zvjezdanog vremena takoder traju krace od sata, minuta i sekundi Sunčeva vremena:</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>:1 zvjezdani sat = 59 min 50 s</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>:1 zvjezdana minuta = 59,8 s</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Zvjezdano vrijeme ovisi o tome u kojem se godišnjem dobu nalazimo. Onog časa kada je Sunce u proljetnoj točki s kojom zajedno prolazi kroz gornju kulminaciju podne je (12 h Sunčeva vremena), no istodobno je i početak zvjezdanog dana (0 h zvjezdanog vremena). Narednog će se dana Sunce naći istočnije od proljetne točke jer ono među zvijezdama odmiče na [[istok]], pa će u dnevnoj vrtnji neba "zaostajati" za zvijezdama i kasnije proći nego proljetna točka. Kada [[kut]] između satnog kruga proljetne točke i Sunca poraste na 90° ([[suncostaj|početak ljeta]]), zvjezdano će vrijeme biti "mlađe" od Sunčeva za 6 h; kada poraste na 180° (početak [[jesen]]i), zvjezdano vrijeme jednako je Sunčevom; kada razlika dosegne 270° (početak [[zima|zime]]), zvjezdano će vrijeme biti za 6 h "starije" od Sunčevog.</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>==== Srednji Sunčev dan ====</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Sunce se ne giba jednolikom brzinom po ekliptici, a [[ekliptika]] se ne podudara s [[nebeski ekvator|nebeskim ekvatorom]]. Po ekliptici se Sunce ne giba jednoliko jer njegovo prividno gibanje samo odražava pravo gibanje Zemlje oko Sunca; Zemlja se po ekliptičnoj stazi giba promjenjivom [[brzina|brzinom]]. Stoga Sunce ne prelazi svakog dana jednake kutove po ekliptici. Sunce isto mijenja svoju kutnu udaljenost od nebeskog ekvatora. To znači da ono osim gibanja usporedo s nebeskim ekvatorom izvodi još i gibanje u smjeru okomitom na [[ekvator]]. Na primjer, dan poslije početka [[proljeće|proljeća]], Sunce će se naći nešto sjevernije od nebeskog ekvatora. Dnevni pomaci na sjever ili na jug od nebeskog ekvatora najveći su u doba [[ravnodnevnica]], a u doba oko [[suncostaj]]a Sunce se giba usporedo s nebeskim ekvatorom. To znači, i kada bi se Sunce ekliptikom i gibalo ravnomjerno, njegova se projekcija na nebeski ekvator ne bi gibala ravnomjerno. </div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Pravi Sunčevi dani ne traju zato jednako. '''Srednji Sunčev dan''' (ili naprosto [[dan]]) je prosjek svih pravih Sunčevih dana u toku tropske ili Sunčeve godine. Danas se trajanje srednjeg Sunčevog dana prati pomoću [[atomski sat|atomskih satova]]. Godine 1967. dogovoreno je da se umjesto sekunde određene iz gibanja Zemlje, kao jedinica vremena iskoristi atomska sekunda ili sekunda određena atomskim satom. Ta je sekunda povezana s trajanjem tropske ili Sunčeve godine 1900. Sekundom se smatra razdoblje vremena koji je bio 31 556 925,9747 puta sadržan u toj tropskoj godini. Kako se duljina dana i tropske godine s vremenom mijenjaju, to se radi usklađenja vremena dana s kalendarom ubacuje u [[kalendar]]ski dan dodatna (prekobrojna) [[sekunda]]. </div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>==== Jednadžba vremena ====</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Prirodne pojave, kao što su izlazak i zalazak Sunca, te gornja [[kulminacija]] (pravo mjesno podne), ovise o gibanju pravog Sunca. Da bi se trenutak dana povezao sa satnom kružnicom na kojoj se nalazi Sunce, ustanovljena je razlika pravog i srednjeg Sunčeva vremena. Razlika je poznata pod nazivom [[jednadžba vremena]]:</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>:'''jednadžba vremena = pravo Sunčevo vrijeme – srednje Sunčevo vrijeme'''</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>==== Srednje Sunčevo vrijeme ====</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Pošto se svako vrijeme, i zvjezdano i Sunčevo, mjeri [[satni kut|satnim kutom]] (u odnosu na [[meridijan]] promatrača), ono je [[Mjesni ekvatorski koordinatni sustav|lokalnog karaktera]]. Svaka [[zemljopisna dužina]] ima svoje vrijeme. Ako je kod nas podne, zapadno od nas bit će još jutro, a istočnije od nas bit će popodne. Svakih 15° zemljopisne dužine donosi razliku mjesnih vremena od 1 [[sat]]. Zato je na nekoj zemljopisnoj dužini ''λ'', srednje Sunčevo vrijeme jednako:</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>:''T<sub>m</sub> = UT ± λ''</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Kod istočnih zemljopisnih dužina predznak je pozitivan, kod zapadnih negativan. Svjetsko ili [[univerzalno vrijeme]] '''UT''' ([[Engleski jezik|eng]]. ''Universal Time'') srednje je Sunčevo vrijeme na 0° meridijanu ili [[Grinički meridijan|griničkom meridijanu]]. Zemljopisnu dužinu ''λ'' treba izraziti u vremenskim jedinicama koristeći sljedeće odnose: 1 h = 15°; 1 min = 15'; 1 s = 15"; 1° = 4 min; 1' = 4 s; 1" = 0,066 s. </div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>==== Koordinirano svjetsko vrijeme UTC ====</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>U društvenim zajednicama uspostavljeno je pojasno ili zonsko vrijeme. Umjesto da se svako mjesto ravna po svojem srednjem Sunčevom vremenu koje započinje u mjesnu ponoć, čitave države ili njihovi dijelovi imaju zajedničko vrijeme. Cijela je Zemlja raspodijeljena na 24 [[vremenska zona|vremenske zone]] ili pojasa. Središnji meridijani vremenske zone razmaknuti su za 15°. Unutar svake zone poštuje se jedinstveno vrijeme. Pojedine države su uvele i [[ljetno računanje vremena]] (eng. ''Daylight saving time'' ili DST), kojim se tijekom ljetnih mjeseci, kazaljke prebacuju obično za jedan sat unaprijed u odnosu na [[koordinirano svjetsko vrijeme]] (eng. ''Coordinated Universal Time'' ili '''UTC'''). U [[Hrvatska|Hrvatskoj]] se primjenjuje [[srednjoeuropsko vrijeme]] ili UTC+1 (točnije rečeno srednjoeuropsko zimsko vrijeme), koje je određeno srednjim Sunčevim vremenom za istočnu zemljopisnu dužinu od 15° E, a od 1983. primjenjuje se i ljetno računanje vremena. Kada se želi iskazati vremenski slijed pojava opažanih na različitim zemljopisnim dužinama, kao i prave vremenske razlike, trenutak vremena izražava se pomoću [[koordinirano svjetsko vrijeme|koordiniranog svjetskog vremena]] UTC. </div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>==== Pravo Sunčevo vrijeme ====</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Odnosima pravog i srednjeg Sunčevog vremena, mjesnog i zonskog, koristimo se kada želimo saznati koliko je sati u trenutku pravog vremena. Građansko vrijeme koje primjenjujemo srednje je Sunčevo vrijeme samo za određeni [[meridijan]]. U nas je to 15° E meridijan. Nalazimo li se 1° istočnije, na 16° E meridijanu (recimo u blizini [[Zagreb]]a), naše srednje vrijeme bit će za 4 minute "starije" (srednjem Sunčevom vremenu treba dodati 4 minute). </div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>==== Datumska granica ====</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Trenutak ponoći u nekoj vremenskoj zoni odjeljuje prošli dan od idućeg dana. Dakle, postoji jedna prirodna granica datuma ([[Nadnevak|nadnevka]]) koja se neprestano pokreće od vremenske zone do zone. Zato na Zemlji mora postojati još jedna granica datuma, jer dva područja na Zemlji, koja istodobno imaju dva različita datuma, moraju se sučeljavati na dvije, a ne samo na jednoj granici. Zato je postavljena čvrsta datumska granica, i to u najmanje naseljenom području [[Tihi ocean|Tihog oceana]]. S obje strane granice isto je vrijeme u danu, jer je jednaka osunčanost, ali se susreću dva različita datuma. Izvodimo pravilo da prilikom prelaska datumske granice treba jedan dan oduzeti putuje li se sa zapada na istok, a dodati jedan dan putuje li se s istoka na zapad. Putovanjem na istok putnik zalazi u područje sve "starijeg" dana, mora pomicati satnu kazaljku neprestano unaprijed, pa na čitavom krugu oko Zemlje napuni jedan dan. Zato stekne jedan dan više, pa ga pri prelasku datumske granice mora odbiti.</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>==== Sekunda ====</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[Sekunda]] je jedinica vremena (znak s), [[Međunarodni sustav mjernih jedinica|osnovna SI-jedinica]]. Naziv potječe od podjele [[sat]]a i [[Stupanj (kut)|stupnja]] na manje dijelove ([[Latinski jezik|lat]]. ''pars minuta secunda'': drugi manji dio). Određena je trajanjem 9 192 631 770 perioda zračenja što odgovara prijelazu između dviju hiperfinih razina osnovnoga stanja [[cezij]]eva [[izotop]]a <sup>133</sup>Cs na [[temperatura|temperaturi]] 0 [[kelvin|K]]. Svojedobno je sekunda bila određena kao 86 400-ti dio srednjega [[Sinodički dan|Sunčeva dana]], a poslije kao određeni dio [[tropska godina|tropske godine]].<ref> '''sekunda''', [http://www.enciklopedija.hr/Natuknica.aspx?ID=55255] "Hrvatska enciklopedija", Leksikografski zavod Miroslav Krleža, www.enciklopedija.hr, 2015.</ref></div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>== Vrijeme u teoriji relativnosti ==</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[datoteka:Nonsymmetric velocity time dilation.gif|mini|desno|300px|S obzirom na referenti sustav (plavi sat), u [[teorija relativnosti|relativno]] ubrzanom crvenom satu vrijeme će teći sporije.]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Vrijeme je [[skalar]]na veličina. Sve do 20. stoljeća smatralo se da je vrijeme isto za svakoga i na svakom mjestu ([[Galileo Galilei]], [[Isaac Newton]]). Galileijeve transformacije iskazuju stav da je vrijeme za sve referentne sustave isto. Vrijeme se shvaćalo kao tijek. [[Albert Einstein]] u [[teorija relativnosti|teoriji relativnosti]] postavio je tvrdnju da vrijeme ovisi o [[brzina|brzini]] gibanja sustava. Ako su na primjer dva sata sinkronizirana i postavljena jedan uz drugi, oni pokazuju isto vrijeme sve dok ostaju jedan uz drugi. Ako se jedan od satova giba nekom vrlo velikom brzinom (usporedivom s [[brzina svjetlosti|brzinom svjetlosti]]), a drugi sat ostaje mirovati, onda će gibajući sat pokazivati da je proteklo manje vremena nego na mirujućem satu. Sat koji se giba ide sporije za čimbenik:</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>:<math> \Delta t' = \gamma \, \Delta t = \frac{\Delta t}{\sqrt{1-\frac{v^2}{c^2}}} \,</math></div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>gdje je: ''v'' – [[brzina]] gibanja sustava, a ''c'' – [[brzina svjetlosti]]. Ta se pojava naziva [[vremenska dilatacija]]. Dokazana je [[pokus]]ima na više načina, na primjer uspoređivanjem [[Vrijeme poluraspada|vremena poluraspada]] brzih [[mion]]a koje se povećava s brzinom tih [[čestica]]. </div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Dok su se prostor i vrijeme u [[Klasična mehanika|Newtonovoj klasičnoj fizici]] smatrali odvojenim entitetima, u teoriji relativnosti oni su povezani u jedan četverodimezionalni [[prostorvrijeme]], pri čem je vrijeme samo jedna od komponenata prostoravremena. Dok su svi smjerovi u prostoru ravnopravni, vrijeme ima svoj smjer od prošlosti preko sadašnjosti u budućnost; smjer vremena je pozitivan, što se očituje na nekoliko načina. [[Biologija|Biološki]] smjer vremena osjeća se kao proces starenja, [[termodinamika|termodinamički]] kao porast [[entropija|entropije]], a [[Kozmologija|kozmološki]] u činjenici da se [[svemir]] širi počevši od svojega vremenskoga početka ([[Veliki prasak]]). Međudjelovanja se u [[Fizika elementarnih čestica|fizici elementarnih čestic]]a podvrgavaju diskretnoj simetriji obrata vremena pa se precizno provjerava njegova neobratljivost (T-invarijantnost). U fizici dodatnih dimenzija (više od četiriju dimenzija), u kozmologiji i višedimenzijskim [[Teorija struna|teorijama struna]] i superstruna (supergravitacija) vremenu pripada uvijek samo jedna dimenzija.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>== Mjerne jedinice za vrijeme ==</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>== Mjerne jedinice za vrijeme ==</div></td> </tr> <tr> <td colspan="2" class="diff-lineno">Redak 8:</td> <td colspan="2" class="diff-lineno">Redak 109:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>Za mjerenje većih vremenskih razdoblja uobičajene su tradicionalne jedinice:</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>Za mjerenje većih vremenskih razdoblja uobičajene su tradicionalne jedinice:</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>*1 [[minuta]] = 60 [[sekunda]]</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>*<ins class="diffchange diffchange-inline"> </ins>1 [[minuta]] = 60 [[sekunda]]<ins class="diffchange diffchange-inline">;</ins></div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>*1 [[sat]] = 60 minuta</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>*<ins class="diffchange diffchange-inline"> </ins>1 [[sat]] = 60 minuta<ins class="diffchange diffchange-inline">;</ins></div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>*1 [[dan]] = 24 sata</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>*<ins class="diffchange diffchange-inline"> </ins>1 [[dan]] = 24 sata<ins class="diffchange diffchange-inline">;</ins></div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>** 1 [[sinodički dan]] ili Sunčev dan je vrijeme koje proteče između Sunčeve dvije uzastopne istovjetne [[Kulminacija|kulminacije]] (gornje u podne ili donje u ponoć). Zemljin sinodički dan definiran kao prosječno vrijeme između dva podneva i iznosi 24 sata;</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>*1 [[tjedan]] = 7 dana</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>** 1 [[siderički dan]] ili zvjezdani dan je [[period rotacije]] [[planet]]a u odnosu na udaljene [[zvijezde]]. Zemljin siderički dan definiran kao vrijeme između dva prolaska [[proljetna točka|proljetne točke]] kroz [[nebeski meridijan]] i iznosi 23 sati 56 minuta i 4 sekunde;</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>*1 [[mjesec (period)|mjesec]] = od 28 do 31 dana</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>*1 [[<del class="diffchange diffchange-inline">godina</del>]] = <del class="diffchange diffchange-inline">12 mjeseci = 365 ili 366</del> dana<del class="diffchange diffchange-inline"> (365,2425)</del></div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>*<ins class="diffchange diffchange-inline"> </ins>1 [[<ins class="diffchange diffchange-inline">tjedan</ins>]] = <ins class="diffchange diffchange-inline">7</ins> dana<ins class="diffchange diffchange-inline">;</ins></div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>*1 [[<del class="diffchange diffchange-inline">desetljeće</del>]] = <del class="diffchange diffchange-inline">10</del> <del class="diffchange diffchange-inline">godina</del></div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>*<ins class="diffchange diffchange-inline"> </ins>1 [[<ins class="diffchange diffchange-inline">mjesec (period)|mjesec</ins>]] = <ins class="diffchange diffchange-inline">od 28 do 31</ins> <ins class="diffchange diffchange-inline">dana;</ins></div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>** [[sinodički mjesec]] je razdoblje promjene [[Mjesečeve mijene|Mjesečevih mijena]] koje odražava položaj [[Mjesec]]a prema [[Sunce|Suncu]], a iznosi 29,530 59 d = 29 d 12 h 44 min 3 s;</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>*1 [[stoljeće]] = 100 godina</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>** [[siderički mjesec]] je razdoblje [[Mjesečeve mijene|Mjesečeva obilaska Zemlje]] s obzirom na [[zvijezde]] (27,321 662 [[dan|d]] = 27 [[dan|d]] 7 [[sat|h]] 43 [[minuta|min]] 11,6 [[sekunda|s]]);</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>*1 [[tisućljeće]] = 1000 godina</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>* 1 [[godina]] = 12 mjeseci = 365 ili 366 dana (365,2425 d);</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>** 1 [[kalendarska godina]] ([[Gregorijanski kalendar|Gregorijanskoga kalendara]]) traje 365 (obična godina) ili 366 dana ([[prijestupna godina]]);</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>** 1 [[Zvjezdana godina|zvjezdana ili siderička godina]] (365 d 6 h 9 min 9,76 s = 365,256363 d) je vrijeme obilaska [[Zemlja|Zemlje]] oko [[Sunce|Sunca]] s obzirom na sustav dalekih [[zvijezda]];</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>** 1 [[Tropska godina|tropska ili Sunčeva godina]] (365 d 5 h 48 min 46 s = 365,24219 d) je vrijeme između dvaju uzastopnih prolazaka Sunca [[Proljetna točka|proljetnom točkom]];</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>** 1 anomalistička godina (365 d 6 h 13 min 52,6 s = 365,259636 d) je vrijeme potrebno da Zemlja ponovno prođe kroz istu točku na svojoj putanji, to jest kroz [[perihel]];</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>** 1 eklipsna ili drakonistička godina (346 d 14 h 52 min 54 s = 346,620075 d) je vrijeme između dvaju uzastopnih prolazaka Sunca istim [[Mjesečevi čvorovi|uzlaznim čvorom Mjesečeve putanje]];<ref> '''godina''', [http://www.enciklopedija.hr/Natuknica.aspx?ID=22472] "Hrvatska enciklopedija", Leksikografski zavod Miroslav Krleža, www.enciklopedija.hr, 2015.</ref></div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>*1 [[desetljeće]] = 10 godina;</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>*1 [[stoljeće]] = 100 godina;</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>*1 [[tisućljeće]] = 1000 godina.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>=== Nestandardne mjerne jedinice za vrijeme ===</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>=== Nestandardne mjerne jedinice za vrijeme ===</div></td> </tr> <tr> <td colspan="2" class="diff-lineno">Redak 23:</td> <td colspan="2" class="diff-lineno">Redak 133:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>*[[doba]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>*[[doba]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>== Izvori ==</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>{{Mrva-fiz}}</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>{{izvori|30em}}</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[Kategorija:Fizikalne veličine]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[<del class="diffchange diffchange-inline">am</del>:<del class="diffchange diffchange-inline">ጊዜ</del>]]</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[<ins class="diffchange diffchange-inline">Kategorija</ins>:<ins class="diffchange diffchange-inline">Vrijeme| </ins>]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>[[Kategorija:Metafizički pojmovi]]</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[an:Tiempo]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ar:زمن]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ast:Tiempu]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[az:Zaman (fizika)]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ba:Ваҡыт]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[bat-smg:Čiesos]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[be:Час]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[be-x-old:Час]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[bg:Време]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[bn:সময়]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[bo:དུས་ཚོད།]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[bs:Vrijeme (fizika)]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ca:Temps]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ckb:کات]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[cs:Čas]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[cu:Врѣмѧ]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[cv:Вăхăт]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[cy:Amser]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[da:Tid]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[de:Zeit]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[diq:Zeman]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[el:Χρόνος]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[en:Time]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[eo:Tempo]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[es:Tiempo]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[et:Aeg]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[eu:Denbora]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ext:Tiempu]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[fa:زمان]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[fi:Aika]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[fiu-vro:Aig]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[fr:Temps]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[fy:Tiid]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ga:Am]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[gl:Tempo]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[gn:Ára]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[hak:Sṳ̀-kiên]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[he:זמן]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[hi:काल]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[hu:Idő]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ia:Tempore]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[id:Waktu]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[io:Tempo]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[is:Tími]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[it:Tempo]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ja:時間]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[jv:Wektu]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ka:დრო]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[kaa:Waqıt]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[kk:Уақыт]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[kn:ಕಾಲ]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ko:시간]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[la:Tempus]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[lb:Zäit]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[lt:Laikas]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[lv:Laiks]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[mk:Време]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ml:കാലം]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[mr:काळ]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ms:Masa]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[nah:Cāhuitl]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[nds:Tiet]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ne:समय]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[nl:Tijd]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[nn:Tid]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[no:Tid]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[nov:Tempe]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[pa:ਸਮਾਂ]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[pl:Czas]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[pnb:ویلہ]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ps:وخت]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[pt:Tempo]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[qu:Mit'awi]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ro:Timp]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ru:Время]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[rue:Час]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[sah:Кэм]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[scn:Tempu]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[sco:Time]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[sh:Vrijeme]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[si:කාලය]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[simple:Time]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[sk:Čas (fyzika)]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[sl:Čas]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[sq:Koha]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[sr:Време]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[su:Waktu]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[sv:Tid]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[sw:Wakati]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[szl:Czas]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ta:நேரம்]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[tg:Соат]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[th:เวลา]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[tl:Panahon (oras)]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[tr:Zaman]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[uk:Час]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[ur:وقت]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[uz:Vaqt]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[vi:Thời gian]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[war:Oras]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[xal:Цаг]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[yi:צייט]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[yo:Àsìkò]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[zh:时间]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[zh-min-nan:Sî-kan]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>[[zh-yue:時間]]</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> </table><hr class='diff-hr' id='mw-oldid' /> <h2 class='diff-currentversion-title'>Posljednja izmjena od 24. studenoga 2024. u 00:39</h2> <div class="mw-content-ltr mw-parser-output" lang="hr" dir="ltr"><table class="infobox" style="width:300px; float: right; clear: right; text-align:center; font-size:90%;"> <tbody><tr style="background:#DCF0FF"> <td><b><a href="/wiki/Klasi%C4%8Dna_mehanika" title="Klasična mehanika">Klasična mehanika</a></b> </td></tr> <tr> <td><div style="padding-top: 7px; padding-bottom: 4px;"><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbf {F} ={\frac {\mathrm {d} }{\mathrm {d} t}}(m\mathbf {v} )}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">F</mi> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">d</mi> </mrow> <mrow> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">d</mi> </mrow> <mi>t</mi> </mrow> </mfrac> </mrow> <mo stretchy="false">(</mo> <mi>m</mi> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">v</mi> </mrow> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbf {F} ={\frac {\mathrm {d} }{\mathrm {d} t}}(m\mathbf {v} )}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/3f9db5d305b630d9a9299ad0e7557114a7e3be46" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.005ex; width:13.01ex; height:5.509ex;" alt="{\displaystyle \mathbf {F} ={\frac {\mathrm {d} }{\mathrm {d} t}}(m\mathbf {v} )}"></span><br /><small><a href="/wiki/Newtonovi_zakoni_gibanja" title="Newtonovi zakoni gibanja">drugi Newtonov zakon</a></small></div> </td></tr> <tr style="line-height: 150%;"> <td><a href="/wiki/Povijest_klasi%C4%8Dne_mehanike" title="Povijest klasične mehanike">povijest klasične mehanike</a><br /><a href="/wiki/Kronologija_klasi%C4%8Dne_mehanike" title="Kronologija klasične mehanike">kronologija klasične mehanike</a> <table class="collapsible collapsed" width="100%"> <tbody><tr> <th style="text-align: left; background: #DCF0FF;">Grane </th></tr> <tr style="line-height: 150%;"> <td><a href="/wiki/Statika" title="Statika">statika</a> • <a href="/wiki/Dinamika" title="Dinamika">dinamika</a>/<a href="/w/index.php?title=Kinetika&action=edit&redlink=1" class="new" title="Kinetika (stranica ne postoji)">kinetika</a> • <a href="/wiki/Kinematika" title="Kinematika">kinematika</a> • <a href="/w/index.php?title=Primjenjena_mehanika&action=edit&redlink=1" class="new" title="Primjenjena mehanika (stranica ne postoji)">primjenjena mehanika</a> • <a href="/wiki/Nebeska_mehanika" title="Nebeska mehanika">nebeska mehanika</a> • <a href="/wiki/Mehanika_kontinuuma" title="Mehanika kontinuuma">mehanika kontinuuma</a> • <a href="/wiki/Statisti%C4%8Dka_mehanika" title="Statistička mehanika">statistička mehanika</a> </td></tr></tbody></table> <table class="collapsible collapsed" width="100%"> <tbody><tr> <th style="text-align: left; background: #DCF0FF;">Formulacije </th></tr> <tr style="line-height: 150%;"> <td><div style="text-align:left;"> <ul><li><a href="/wiki/Newtonovi_zakoni_gibanja" title="Newtonovi zakoni gibanja">Newtonova mehanika</a> (vektorska mehanika)</li> <li><a href="/wiki/Analiti%C4%8Dka_mehanika" title="Analitička mehanika">analitička mehanika</a>: <ul><li><a href="/w/index.php?title=Lagrangeova_mehanika&action=edit&redlink=1" class="new" title="Lagrangeova mehanika (stranica ne postoji)">Lagrangeova mehanika</a></li> <li><a href="/w/index.php?title=Hamiltonova_mehanika&action=edit&redlink=1" class="new" title="Hamiltonova mehanika (stranica ne postoji)">Hamiltonova mehanika</a></li></ul></li></ul></div> </td></tr></tbody></table> <table class="collapsible collapsed" width="100%"> <tbody><tr> <th style="text-align: left; background: #DCF0FF;">Osnovni koncepti </th></tr> <tr style="line-height: 150%;"> <td><a href="/wiki/Prostor" title="Prostor">prostor</a> • <a class="mw-selflink selflink">vrijeme</a> • <a href="/wiki/Brzina" title="Brzina">brzina</a> • <a href="/wiki/Masa" title="Masa">masa</a> • <a href="/wiki/Ubrzanje" title="Ubrzanje">ubrzanje</a> • <a href="/wiki/Gravitacija" title="Gravitacija">gravitacija</a> • <a href="/wiki/Sila" title="Sila">sila</a> • <a href="/wiki/Impuls_sile" title="Impuls sile">impuls sile</a> • <a href="/wiki/Spreg_sila" title="Spreg sila">spreg sila</a>/<a href="/wiki/Moment_sile" title="Moment sile">moment sile</a> • <a href="/wiki/Koli%C4%8Dina_gibanja" title="Količina gibanja">količina gibanja</a> • <a href="/wiki/Kutna_koli%C4%8Dina_gibanja" title="Kutna količina gibanja">kutna količina gibanja</a> • <a href="/wiki/Tromost" title="Tromost">tromost</a> • <a href="/wiki/Moment_tromosti" class="mw-redirect" title="Moment tromosti">moment tromosti</a> • <a href="/wiki/Referentni_okvir" class="mw-redirect" title="Referentni okvir">referentni okvir</a> • <a href="/wiki/Energija" title="Energija">energija</a> • <a href="/wiki/Kineti%C4%8Dka_energija" title="Kinetička energija">kinetička energija</a> • <a href="/wiki/Potencijalna_energija" title="Potencijalna energija">potencijalna energija</a> • <a href="/wiki/Rad_(fizika)" title="Rad (fizika)">rad</a> • <a href="/w/index.php?title=Virtualni_rad&action=edit&redlink=1" class="new" title="Virtualni rad (stranica ne postoji)">virtualni rad</a> • <a href="/w/index.php?title=D%27Alembertovo_na%C4%8Delo&action=edit&redlink=1" class="new" title="D'Alembertovo načelo (stranica ne postoji)">D'Alembertovo načelo</a> • <a href="/wiki/Princip_stacionarnog_djelovanja" title="Princip stacionarnog djelovanja">princip stacionarnog djelovanja</a> </td></tr></tbody></table> <table class="collapsible collapsed" width="100%"> <tbody><tr> <th style="text-align: left; background: #DCF0FF;">Ključne teme </th></tr> <tr style="line-height: 150%;"> <td><a href="/w/index.php?title=Kruto_tijelo&action=edit&redlink=1" class="new" title="Kruto tijelo (stranica ne postoji)">kruto tijelo</a> • <a href="/w/index.php?title=Dinamika_krutog_tijela&action=edit&redlink=1" class="new" title="Dinamika krutog tijela (stranica ne postoji)">dinamika krutog tijela</a> • <a href="/w/index.php?title=Eulerove_jednad%C5%BEbe_gibanja&action=edit&redlink=1" class="new" title="Eulerove jednadžbe gibanja (stranica ne postoji)">Eulerove jednadžbe gibanja</a> • <a href="/wiki/Gibanje" title="Gibanje">gibanje</a> • <a href="/wiki/Newtonovi_zakoni_gibanja" title="Newtonovi zakoni gibanja">Newtonovi zakoni gibanja</a> • <a href="/wiki/Newtonov_zakon_gravitacije" title="Newtonov zakon gravitacije">Newtonov zakon gravitacije</a> • <a href="/w/index.php?title=Jednad%C5%BEbe_gibanja&action=edit&redlink=1" class="new" title="Jednadžbe gibanja (stranica ne postoji)">jednadžbe gibanja</a> • <a href="/wiki/Inercijski_referentni_okvir" title="Inercijski referentni okvir">inercijski referentni okvir</a> • <a href="/w/index.php?title=Neinercijski_referentni_okvir&action=edit&redlink=1" class="new" title="Neinercijski referentni okvir (stranica ne postoji)">neinercijski referentni okvir</a> • <a href="/w/index.php?title=Rotiraju%C4%87i_referentni_okvir&action=edit&redlink=1" class="new" title="Rotirajući referentni okvir (stranica ne postoji)">rotirajući referentni okvir</a> • <a href="/w/index.php?title=Fiktivna_sila&action=edit&redlink=1" class="new" title="Fiktivna sila (stranica ne postoji)">fiktivna sila</a> • <a href="/w/index.php?title=Mehanika_ravninskog_gibanja_krutog_tijela&action=edit&redlink=1" class="new" title="Mehanika ravninskog gibanja krutog tijela (stranica ne postoji)">mehanika ravninskog gibanja krutog tijela</a> • <a href="/w/index.php?title=Pomak_(vektor)&action=edit&redlink=1" class="new" title="Pomak (vektor) (stranica ne postoji)">pomak (vektor)</a> • <a href="/w/index.php?title=Relativna_brzina&action=edit&redlink=1" class="new" title="Relativna brzina (stranica ne postoji)">relativna brzina</a> • <a href="/wiki/Trenje" title="Trenje">trenje</a> • <a href="/w/index.php?title=Jednostavno_harmonijsko_gibanje&action=edit&redlink=1" class="new" title="Jednostavno harmonijsko gibanje (stranica ne postoji)">jednostavno harmonijsko gibanje</a> • <a href="/wiki/Harmonijski_oscilator" class="mw-redirect" title="Harmonijski oscilator">harmonijski oscilator</a> • <a href="/wiki/Vibracije" title="Vibracije">vibracije</a> • <a href="/wiki/Prigu%C5%A1enje" title="Prigušenje">prigušenje</a> • <a href="/w/index.php?title=Koeficijent_prigu%C5%A1enja&action=edit&redlink=1" class="new" title="Koeficijent prigušenja (stranica ne postoji)">koeficijent prigušenja</a> • <a href="/w/index.php?title=Rotacija_tijela_oko_nepomi%C4%8Dne_osi&action=edit&redlink=1" class="new" title="Rotacija tijela oko nepomične osi (stranica ne postoji)">Rotacijsko gibanje</a> • <a href="/wiki/Kru%C5%BEno_gibanje" title="Kružno gibanje">Kružno gibanje</a> • <a href="/wiki/Jednoliko_gibanje_po_kru%C5%BEnici" title="Jednoliko gibanje po kružnici">jednoliko kružno gibanje</a> • <a href="/w/index.php?title=Nejednoliko_kru%C5%BEno_gibanje&action=edit&redlink=1" class="new" title="Nejednoliko kružno gibanje (stranica ne postoji)">nejednoliko kružno gibanje</a> • <a href="/wiki/Centripetalna_sila" title="Centripetalna sila">centripetalna sila</a> • <a href="/wiki/Centrifugalna_sila" title="Centrifugalna sila">centrifugalna sila</a> • <a href="/w/index.php?title=Centrifugalna_sila_(rotacijski_referentni_okvir)&action=edit&redlink=1" class="new" title="Centrifugalna sila (rotacijski referentni okvir) (stranica ne postoji)">centrifugalna sila (rotacijski referentni okvir)</a> • <a href="/w/index.php?title=Reaktivna_centrifugalna_sila&action=edit&redlink=1" class="new" title="Reaktivna centrifugalna sila (stranica ne postoji)">reaktivna centrifugalna sila</a> • <a href="/wiki/Coriolisov_u%C4%8Dinak" title="Coriolisov učinak">Coriolisov učinak</a> • <a href="/w/index.php?title=Fizi%C4%8Dko_njihalo&action=edit&redlink=1" class="new" title="Fizičko njihalo (stranica ne postoji)">fizičko njihalo</a> • <a href="/w/index.php?title=Rotacijska_brzina&action=edit&redlink=1" class="new" title="Rotacijska brzina (stranica ne postoji)">rotacijska brzina</a> • <a href="/wiki/Kutno_ubrzanje" title="Kutno ubrzanje">kutno ubrzanje</a> • <a href="/wiki/Kutna_brzina" title="Kutna brzina">kutna brzina</a> • <a href="/wiki/Kutna_frekvencija" title="Kutna frekvencija">kutna frekvencija</a> • <a href="/w/index.php?title=Kutni_pomak&action=edit&redlink=1" class="new" title="Kutni pomak (stranica ne postoji)">kutni pomak</a> </td></tr></tbody></table> <table class="collapsible collapsed" width="100%"> <tbody><tr> <th style="text-align: left; background: #DCF0FF;">Znanstvenici </th></tr> <tr style="line-height: 150%;"> <td><a href="/wiki/Isaac_Newton" title="Isaac Newton">Isaac Newton</a> • <a href="/w/index.php?title=Jeremiah_Horrocks&action=edit&redlink=1" class="new" title="Jeremiah Horrocks (stranica ne postoji)">Jeremiah Horrocks</a> • <a href="/wiki/Leonhard_Euler" title="Leonhard Euler">Leonhard Euler</a> • <a href="/wiki/Jean_le_Rond_d%27Alembert" title="Jean le Rond d'Alembert">Jean le Rond d'Alembert</a> • <a href="/w/index.php?title=Alexis_Clairaut&action=edit&redlink=1" class="new" title="Alexis Clairaut (stranica ne postoji)">Alexis Clairaut</a> • <a href="/wiki/Joseph_Louis_Lagrange" class="mw-redirect" title="Joseph Louis Lagrange">Joseph Louis Lagrange</a> • <a href="/wiki/Pierre-Simon_Laplace" title="Pierre-Simon Laplace">Pierre-Simon Laplace</a> • <a href="/wiki/William_Rowan_Hamilton" title="William Rowan Hamilton">William Rowan Hamilton</a> • <a href="/w/index.php?title=Sim%C3%A9on-Denis_Poisson&action=edit&redlink=1" class="new" title="Siméon-Denis Poisson (stranica ne postoji)">Siméon-Denis Poisson</a> </td></tr></tbody></table> </td></tr> </tbody></table> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:MontreGousset001.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/MontreGousset001.jpg/300px-MontreGousset001.jpg" decoding="async" width="300" height="261" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/MontreGousset001.jpg/450px-MontreGousset001.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/MontreGousset001.jpg/600px-MontreGousset001.jpg 2x" data-file-width="800" data-file-height="697" /></a><figcaption><a href="/wiki/Sat_(instrument)" title="Sat (instrument)">Sat</a> mjeri vrijeme.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Old_Pendulum_clock.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Old_Pendulum_clock.jpg/300px-Old_Pendulum_clock.jpg" decoding="async" width="300" height="521" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Old_Pendulum_clock.jpg/450px-Old_Pendulum_clock.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Old_Pendulum_clock.jpg/600px-Old_Pendulum_clock.jpg 2x" data-file-width="1412" data-file-height="2451" /></a><figcaption>Sat s klatnom (<a href="/wiki/Njihalo" title="Njihalo">njihalom</a>) ili ura njihalica.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Clepsydra-Diagram-Fancy.jpeg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Clepsydra-Diagram-Fancy.jpeg/300px-Clepsydra-Diagram-Fancy.jpeg" decoding="async" width="300" height="480" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/7/7b/Clepsydra-Diagram-Fancy.jpeg 1.5x" data-file-width="375" data-file-height="600" /></a><figcaption>Prikaz <a href="/wiki/Vodeni_sat" title="Vodeni sat">vodenog sata</a> kojeg je napravio <a href="/wiki/Ktesibije_Aleksandrijski" title="Ktesibije Aleksandrijski">Ktesibije Aleksandrijski</a> u 3. stoljeću pr. Kr. </figcaption></figure> <p><b>Vrijeme</b>, u <a href="/wiki/Fizika" title="Fizika">fizici</a>, je temeljna <a href="/wiki/Mjerna_veli%C4%8Dina" title="Mjerna veličina">fizikalna veličina</a> koja obilježava trajanje zbivanja ili razmak između dvaju događaja. Vrijeme omogućuje razlikovanje dvaju inače potpuno istih događaja u istoj točki <a href="/wiki/Prostor" title="Prostor">prostora</a>. Razmak (<a href="/wiki/Udaljenost" class="mw-redirect" title="Udaljenost">udaljenost</a>) između tih događaja služi kao osnova za <a href="/wiki/Mjerenje" title="Mjerenje">mjerenje</a> vremena. Događanje, promjena i <a href="/wiki/Gibanje" title="Gibanje">gibanje</a> ne mogu se shvatiti bez vremena. Vrijeme se može uočiti samo po promjeni događanja. Mnoge se <a href="/wiki/Pojava" title="Pojava">pojave</a> u <a href="/wiki/Priroda" title="Priroda">prirodi</a> pravilno ponavljaju i mogu poslužiti za određivanje vremena. Tako se na primjer <a href="/wiki/Zemljina_rotacija" title="Zemljina rotacija">Zemljinom vrtnjom</a> oko njezine <a href="/wiki/Os" title="Os">osi</a> određuje vrijeme od jednoga <a href="/wiki/Dan" title="Dan">dana</a>, a njezinim <a href="/wiki/Zemljina_putanja" title="Zemljina putanja">gibanjem oko Sunca</a> vrijeme od jedne <a href="/wiki/Godina" title="Godina">godine</a>. Na načelu <a href="/wiki/Njihalo" title="Njihalo">njihala</a> konstruirana je <a href="/wiki/Sat_(instrument)" title="Sat (instrument)">ura njihalica</a>. Za određivanje vremena služe i druge naprave, na primjer <a href="/wiki/Pje%C5%A1%C4%8Dani_sat" title="Pješčani sat">pješčani sat</a>, <a href="/wiki/Vodeni_sat" title="Vodeni sat">vodeni sat</a>, mehanički sat, <a href="/wiki/Digitalizacija" title="Digitalizacija">digitalni</a> sat, <a href="/wiki/Atomski_sat" title="Atomski sat">atomski sat</a> i drugo. S pomoću vremena i prostora (prijeđenoga puta) određuje se <a href="/wiki/Brzina" title="Brzina">brzina</a> gibanja.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Filozofska razmatranja o prirodi vremena mogu se ugrubo razvrstati u dva suprotstavljena stajališta. Prema jednome (koje odgovara na primjer <a href="/wiki/Isaac_Newton" title="Isaac Newton">Newtonovim</a> predodžbama), vrijeme je dio stvarne i fundamentalne strukture <a href="/wiki/Svemir" title="Svemir">svemira</a>: ono je <a href="/wiki/Dimenzija" title="Dimenzija">dimenzija</a> svemira u kojoj se događaji odvijaju nekim redoslijedom – i nije ovisno o tim događajima. Prema drugom stajalištu (koje uglavnom odgovara <a href="/wiki/Gottfried_Leibniz" title="Gottfried Leibniz">Leibnizovim</a> i <a href="/wiki/Immanuel_Kant" title="Immanuel Kant">Kantovim</a> nazorima), vrijeme je samo dio čovjekovog intelektualnog aparata, način na koji ljudska svijest percipira i tumači događaje. U fizikalnim razmatranjima prirode vremena dominira prvo stajalište (premda ima i pokušaja alternativnih tumačenja). Vrijeme je fundamentalna dimenzija svemira, duž koje su događaji poredani od prošlosti prema budućnosti. Pomoću vremena se mjeri "gdje" se u tome poretku događaj nalazi (kada, to jest u kojem <i>trenutku</i> se zbiva), te koliki su razmaci između događaja ili trajanje procesa (koliko su "dugački" <i>vremenski intervali</i>). Usto, razvoj fizike u <a href="/wiki/Albert_Einstein" title="Albert Einstein">Einsteinovo</a> doba je pokazao kako opažanja trenutaka i intervala mogu ovisiti o promatraču koji ih mjeri. </p><p><a href="/wiki/Isaac_Newton" title="Isaac Newton">Isaac Newton</a> je smatrao da je vrijeme "apsolutno", to jest da teče jednako za sve promatrače. <a href="/wiki/Klasi%C4%8Dna_mehanika" title="Klasična mehanika">Klasična mehanika</a> (preciznije, <i>nerelativistička klasična mehanika</i>) je utemeljena na Newtonovom konceptu vremena. Da bi protumačio neka opažanja s kraja 19. stoljeća, <a href="/wiki/Albert_Einstein" title="Albert Einstein">Albert Einstein</a> je u svojoj specijalnoj <a href="/wiki/Teorija_relativnosti" title="Teorija relativnosti">teoriji relativnosti</a> postulirao jednakost iznosa <a href="/wiki/Brzina_svjetlosti" title="Brzina svjetlosti">brzine svjetlosti</a> (u <a href="/wiki/Vakuum" title="Vakuum">vakuumu</a>) za sve promatrače, te pokazao da zbog toga oni neće na isti način opažati prostor i vrijeme. Mjerenja prostora i vremena postaju zbog toga međuovisna, zbog čega se u fiziku uvodi koncept četverodimenzionalnog prostorno-vremenskog kontinuuma (<a href="/wiki/Prostorvrijeme" title="Prostorvrijeme">prostorvrijeme</a>). </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Trenutak_i_vremenski_interval">Trenutak i vremenski interval</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vrijeme_(fizika)&veaction=edit&section=1" title="Uredi odlomak: Trenutak i vremenski interval" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vrijeme_(fizika)&action=edit&section=1" title="Uredi kôd odjeljka Trenutak i vremenski interval"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Za operativno korištenje koncepta vremena u fizici (jednako u klasičnoj i relativističkoj) i u drugim znanostima i primjenama, nužno je jasno razlikovati pojam "trenutak" od pojma "vremenski interval". U svakodnevnom govoru, termin "vrijeme" (u gore navedenome <a href="/wiki/Fizika" title="Fizika">fizikalnom smislu</a>) često se koristi tako kao da ta razlika ne postoji. </p> <div class="mw-heading mw-heading3"><h3 id="Trenutak">Trenutak</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vrijeme_(fizika)&veaction=edit&section=2" title="Uredi odlomak: Trenutak" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vrijeme_(fizika)&action=edit&section=2" title="Uredi kôd odjeljka Trenutak"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>Trenutak</b> se označava simbolom <i>t</i> i često se opisuje kao "točka u vremenu". Taj se opis temelji na analogiji s prostornom dimenzijom koju opisujemo na primjer pomoću koordinatne osi "x" <a href="/wiki/Kartezijev_koordinatni_sustav" title="Kartezijev koordinatni sustav">Kartezijevog sustava</a>. Kao što <i>x</i> predstavlja položaj ili koordinatu ("točku u prostoru") na toj osi, tako je <i>t</i> koordinata ili "točka" duž analogne koordinatne osi "t". Na toj se analogiji temelji grafički prikaz (pa i razumijevanje) veličina koje su "funkcije vremena". </p><p>Jednostavnije je, međutim, objasniti pojam trenutka pomoću uređaja za mjerenje vremena, kao što je sat na slici desno. Trenutak je ono što upravo pokazuje taj sat, to jest 6 <a href="/wiki/Sat" title="Sat">sati</a> i 8 <a href="/wiki/Minuta" title="Minuta">minuta</a> (približno). </p><p>Jasno je da "sadašnji" trenutak ovisi o tome kada je bio "početni trenutak" <i>t = 0</i> (na takvome satu početni trenutak je u 12 sati). Još bolji primjer je zaporna ura ("štoperica"). Kod nje biramo početni trenutak <i>t = 0</i> (to jest "ishodište za mjerenje vremena") kada je aktiviramo. Svaka brojka koju nakon toga pokaže kazaljka (ili se ispiše na ekranu) je "tadašnji" trenutak <i>t</i>. </p><p>Tako pojedini trenutak <i>t</i>, iako sam nema trajanja, pokazuje koliko je vremena proteklo od odabranog (dogovorenog) početnog trenutka <i>t = 0</i>. Naravno, vrijeme je postojalo i prije takvoga proizvoljno odabranoga početnog trenutka, kao što je uključivanje zaporne ure. Ti raniji trenutci opisuju se negativnim brojevima, na primjer trenutak <i>t = -3s</i> zbio se 3 sekunde prije trenutka <i>t = 0</i>. U povijesnom opisu vremena pomoću <a href="/wiki/Gregorijanski_kalendar" title="Gregorijanski kalendar">Gregorijanskog kalendara</a>, umjesto "negativnih" godina koristi se oznaka <i>prije Krista</i> ili <i>prije nove ere</i>. </p><p>"Apsolutni" svemirski početni trenutak <i>t = 0</i>, prema fizikalnoj teoriji <a href="/wiki/Veliki_prasak" title="Veliki prasak">velikog praska</a> i s njom povezanim mjerenjima<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> desio se prije približno 13,75 milijardi godina. Tada, grubo govoreći, zajedno sa svemirom nastaje i prostor i vrijeme, te nema ranijih ("negativnih") trenutaka. </p> <div class="mw-heading mw-heading3"><h3 id="Vremenski_interval">Vremenski interval</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vrijeme_(fizika)&veaction=edit&section=3" title="Uredi odlomak: Vremenski interval" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vrijeme_(fizika)&action=edit&section=3" title="Uredi kôd odjeljka Vremenski interval"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>Vremenski interval</b> opisuje koliko je vremena proteklo između neka dva trenutka. Primjerice, između nekog (prvog) trenutka <i>t<sub>1</sub>=3s</i> koji je pokazala zaporna ura, i drugog trenutka <i>t<sub>2</sub> = 8s</i> koji je kasnije pokazala, proteklo je 5 <a href="/wiki/Sekunda" title="Sekunda">sekundi</a>, što se formalno dobiva oduzimanjem <i>t<sub>2</sub> – t<sub>1</sub></i>. Uobičajeno je razliku vrijednosti (ili promjenu vrijednosti) obilježavati simbolom <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle \Delta }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi mathvariant="normal">Δ</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle \Delta }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/2c7428df33efb5339a7c947720caf317992ac224" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.369ex; height:1.843ex;" alt="{\displaystyle \scriptstyle \Delta }"></span>, pa se zato za vremenski interval koristi oznaka <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle \Delta t}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi mathvariant="normal">Δ</mi> <mi>t</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle \Delta t}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/d3177d420bcd53822fc672fb7d85f76ba2477fe2" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.963ex; height:1.843ex;" alt="{\displaystyle \scriptstyle \Delta t}"></span>: </p> <dl><dd><dl><dd><dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \Delta t=t_{2}-t_{1}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi mathvariant="normal">Δ</mi> <mi>t</mi> <mo>=</mo> <msub> <mi>t</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <mo>−</mo> <msub> <mi>t</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \Delta t=t_{2}-t_{1}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b86a05553fd8995ff99b57befebff0f8ce4abf15" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:12.502ex; height:2.509ex;" alt="{\displaystyle \Delta t=t_{2}-t_{1}}"></span>.</dd></dl></dd></dl></dd></dl> <p>U specijalnom slučaju kada je prvi trenutak jednak nuli (<i>t<sub>1</sub> = 0</i>), a drugi trenutak se označi kao <i>t</i> (umjesto <i>t<sub>2</sub></i>), dobije se jednakost <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle \Delta t=t}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi mathvariant="normal">Δ</mi> <mi>t</mi> <mo>=</mo> <mi>t</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle \Delta t=t}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/853417e2696c0b972aa49882972c75cb52e5e95b" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:3.835ex; height:1.843ex;" alt="{\displaystyle \scriptstyle \Delta t=t}"></span>. Time se može pravdati zamjena simbola za <i>vremenski interval</i> sa simbolom za <i>trenutak u vremenu</i>, koja je uobičajena u nekim formulama u uvodnim tumačenjima fizikalnih pojava. No, pritom ipak treba upozoriti na smisao simbola: vremenski interval označava <i>koliko nešto traje</i>, dok trenutak označava <i>kada se nešto dogodilo</i>. </p> <div class="mw-heading mw-heading2"><h2 id="Vrijeme_u_astronomiji">Vrijeme u astronomiji</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vrijeme_(fizika)&veaction=edit&section=4" title="Uredi odlomak: Vrijeme u astronomiji" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vrijeme_(fizika)&action=edit&section=4" title="Uredi kôd odjeljka Vrijeme u astronomiji"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Sidereal_day_(prograde).png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/67/Sidereal_day_%28prograde%29.png/300px-Sidereal_day_%28prograde%29.png" decoding="async" width="300" height="224" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/67/Sidereal_day_%28prograde%29.png/450px-Sidereal_day_%28prograde%29.png 1.5x, //upload.wikimedia.org/wikipedia/commons/6/67/Sidereal_day_%28prograde%29.png 2x" data-file-width="481" data-file-height="359" /></a><figcaption><a href="/wiki/Sinodi%C4%8Dki_dan" title="Sinodički dan">Sinodički dan</a> (<b>Sunčev dan</b>) je duži od <a href="/wiki/Sideri%C4%8Dki_dan" title="Siderički dan">sideričkog dana</a> (<b>zvjezdani dan</b>). U vremenu od 1 do 2, <a href="/wiki/Zemlja" title="Zemlja">Zemlja</a> se potpuno <a href="/wiki/Zemljina_rotacija" title="Zemljina rotacija">okrene oko svoje osi</a> vrtnje za 360° (1→2 = siderički ili zvjezdani dan). Ali tek otprilike 4 minute kasnije u položaju 3, Zemlja je dosegla <a href="/wiki/Kulminacija" title="Kulminacija">kulminaciju</a> (podne) u odnosu na Sunce (1→3 = sinodički ili Sunčev dan).</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Nebeska_sfera_4.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Nebeska_sfera_4.jpg/300px-Nebeska_sfera_4.jpg" decoding="async" width="300" height="225" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Nebeska_sfera_4.jpg/450px-Nebeska_sfera_4.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Nebeska_sfera_4.jpg/600px-Nebeska_sfera_4.jpg 2x" data-file-width="2000" data-file-height="1500" /></a><figcaption><a href="/wiki/Zemljina_rotacija" title="Zemljina rotacija">Zemljina vrtnja</a> uzrok je prividnom okretanju <a href="/wiki/Nebeska_sfera" title="Nebeska sfera">nebeske sfere</a> i izmjene <a href="/wiki/Dan" title="Dan">dana</a> i <a href="/wiki/No%C4%87" title="Noć">noći</a>.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Four_season_croatian_infotext.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/32/Four_season_croatian_infotext.svg/300px-Four_season_croatian_infotext.svg.png" decoding="async" width="300" height="184" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/32/Four_season_croatian_infotext.svg/450px-Four_season_croatian_infotext.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/32/Four_season_croatian_infotext.svg/600px-Four_season_croatian_infotext.svg.png 2x" data-file-width="1274" data-file-height="780" /></a><figcaption>Prikaz položaja <a href="/wiki/Zemlja" title="Zemlja">Zemlje</a> i <a href="/wiki/Sunce" title="Sunce">Sunca</a> za 4 <a href="/wiki/Godi%C5%A1nja_doba" title="Godišnja doba">godišnja doba</a>.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Nebeska_sfera_3.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/57/Nebeska_sfera_3.png/300px-Nebeska_sfera_3.png" decoding="async" width="300" height="317" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/5/57/Nebeska_sfera_3.png 1.5x" data-file-width="353" data-file-height="373" /></a><figcaption><a href="/wiki/Nebeski_ekvator" title="Nebeski ekvator">Nebeski ekvator</a> i <a href="/wiki/Ekliptika" title="Ekliptika">ekliptika</a>.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Jednadzba_vremena.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/hr/thumb/7/78/Jednadzba_vremena.png/300px-Jednadzba_vremena.png" decoding="async" width="300" height="257" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/hr/thumb/7/78/Jednadzba_vremena.png/450px-Jednadzba_vremena.png 1.5x, //upload.wikimedia.org/wikipedia/hr/thumb/7/78/Jednadzba_vremena.png/600px-Jednadzba_vremena.png 2x" data-file-width="700" data-file-height="600" /></a><figcaption><a href="/wiki/Jednad%C5%BEba_vremena" title="Jednadžba vremena">Jednadžba vremena</a> prikazuje razliku pravog i srednjeg Sunčeva vremena.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:World_Time_Zones_Map.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/88/World_Time_Zones_Map.png/300px-World_Time_Zones_Map.png" decoding="async" width="300" height="162" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/88/World_Time_Zones_Map.png/450px-World_Time_Zones_Map.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/88/World_Time_Zones_Map.png/600px-World_Time_Zones_Map.png 2x" data-file-width="4000" data-file-height="2157" /></a><figcaption>Karta <a href="/wiki/Vremenska_zona" title="Vremenska zona">vremenskih zona</a> svijeta (od siječnja 2015).</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Praezession.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Praezession.svg/300px-Praezession.svg.png" decoding="async" width="300" height="360" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Praezession.svg/450px-Praezession.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Praezession.svg/600px-Praezession.svg.png 2x" data-file-width="500" data-file-height="600" /></a><figcaption><a href="/wiki/Nebeska_sfera" title="Nebeska sfera">Nebeski svod</a> se kreće po <a href="/wiki/Krivulja" title="Krivulja">krivulji</a>, koja je <a href="/wiki/Rezultanta" title="Rezultanta">rezultanta</a> uzajamnog djelovanja <a href="/wiki/Zemljina_rotacija" title="Zemljina rotacija">rotacije</a> (zeleno), Zemljine precesije (plavo) i <a href="/wiki/Nutacija" title="Nutacija">nutacije</a> (crveno).</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Earth_precession.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/43/Earth_precession.svg/300px-Earth_precession.svg.png" decoding="async" width="300" height="342" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/43/Earth_precession.svg/450px-Earth_precession.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/43/Earth_precession.svg/600px-Earth_precession.svg.png 2x" data-file-width="670" data-file-height="764" /></a><figcaption><a href="/wiki/Zemljina_precesija" title="Zemljina precesija">Zemljina precesija</a>.</figcaption></figure> <p>Vrijeme, u <a href="/wiki/Astronomija" title="Astronomija">astronomiji</a>, je klasično praćenje tijeka vremena i određivanje vremenskih jedinica postizalo se opažanjem periodičnih promjena položaja <a href="/wiki/Sunce" title="Sunce">Sunca</a> i drugih <a href="/wiki/Nebesko_tijelo" class="mw-redirect" title="Nebesko tijelo">nebeskih tijela</a> na <a href="/wiki/Nebeska_sfera" title="Nebeska sfera">nebeskoj sferi</a> (<a href="/wiki/Dan" title="Dan">dan</a>; <a href="/wiki/Godina" title="Godina">godina</a>; sunčano vrijeme). Utjecaj <a href="/wiki/Elipti%C4%8Dnost" class="mw-redirect" title="Eliptičnost">eliptičnosti</a> <a href="/wiki/Zemljina_putanja" title="Zemljina putanja">Zemljine staze</a> korigirao se <a href="/wiki/Jednad%C5%BEba_vremena" title="Jednadžba vremena">jednadžbom vremena</a>. Razvoj preciznijih <a href="/wiki/Astronomski_instrumenti" title="Astronomski instrumenti">astronomskih i, općenito, fizikalnih instrumenata</a> i metoda uvjetovao je određivanje apsolutne veličine vremenskoga trajanja (<a href="/wiki/Sekunda" title="Sekunda">sekunda</a>), prema kojoj se izračunavaju (mjere) klasične vremenske jedinice. Danas se sekunda određuje s pomoću 350 <a href="/wiki/Atomski_sat" title="Atomski sat">atomskih satova</a> smještenih na 66 mjesta na <a href="/wiki/Zemlja" title="Zemlja">Zemlji</a>, kojima se rad koordinira u <a href="/wiki/Me%C4%91unarodni_ured_za_mjere_i_utege" class="mw-redirect" title="Međunarodni ured za mjere i utege">Međunarodnom uredu za utege i mjere</a> u Sèvresu u <a href="/wiki/Francuska" title="Francuska">Francuskoj</a> (BIPM). Na temelju toga određuje se trajanje sekunde i takozvano <a href="/wiki/Me%C4%91unarodno_atomsko_vrijeme" title="Međunarodno atomsko vrijeme">međunarodno atomsko vrijeme</a> (TAI) te iz njega <a href="/wiki/Univerzalno_vrijeme" title="Univerzalno vrijeme">univerzalno vrijeme</a> (UTC) kao temelj za sva mjerenja i za takozvano građansko vrijeme, mjesna vremena, vremenske zone te različita službena vremena. </p> <div class="mw-heading mw-heading3"><h3 id="Sunčevo_i_zvjezdano_vrijeme"><span id="Sun.C4.8Devo_i_zvjezdano_vrijeme"></span>Sunčevo i zvjezdano vrijeme</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vrijeme_(fizika)&veaction=edit&section=5" title="Uredi odlomak: Sunčevo i zvjezdano vrijeme" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vrijeme_(fizika)&action=edit&section=5" title="Uredi kôd odjeljka Sunčevo i zvjezdano vrijeme"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>U svakodnevnom djelovanju najvažnije razdoblje vremena određeno je izmjenom <a href="/wiki/Svjetlost" title="Svjetlost">svjetlosti</a> i tame (dnevnom izmjenom osunčenja ili <a href="/wiki/Insolacija" title="Insolacija">insolacije</a>). Položaj <a href="/wiki/Sunce" title="Sunce">Sunca</a> na <a href="/wiki/Nebeska_sfera" title="Nebeska sfera">nebeskoj sferi</a> predstavlja kazaljku pomoću koje se ustanovljuje doba dana. Računanje <a class="mw-selflink selflink">vremena</a> dana počinje u ponoć, u času kada se Sunce nalazi u <a href="/wiki/Kulminacija" title="Kulminacija">donjoj kulminaciji</a>. <b>Sunčev dan</b> (<a href="/wiki/Sinodi%C4%8Dki_dan" title="Sinodički dan">sinodički dan</a>) je vrijeme koje proteče između Sunčeve dvije uzastopne istovjetne <a href="/wiki/Kulminacija" title="Kulminacija">kulminacije</a> (gornje u podne ili donje u ponoć). Slično tome, <b>zvjezdani dan</b> (siderički dan) je vrijeme u kojemu puni okret učini neka <a href="/wiki/Zvijezda" title="Zvijezda">zvijezda</a>, ili točnije rečeno <a href="/wiki/Proljetna_to%C4%8Dka" title="Proljetna točka">proljetna točka</a>. Sunčevo vrijeme služi za svakodnevne životne djelatnosti. Znajući trenutak Sunčeva vremena, u stanju smo odrediti položaj Sunca na nebu. Možda nam se čini da to nije problem, jer se Sunce iznad <a href="/wiki/Obzor" title="Obzor">obzora</a> lako ugleda. No kod zvijezda nije tako. Zvijezde su mnogo manjeg sjaja nego Sunce. Zvjezdano vrijeme potrebno je da bi se odredio položaj zvijezda, a osim u <a href="/wiki/Astronomija" title="Astronomija">astronomiji</a>, primjenjuje se u <a href="/wiki/Geodezija" title="Geodezija">geodeziji</a> i <a href="/wiki/Navigacija" title="Navigacija">navigaciji</a>.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Zvjezdano_vrijeme">Zvjezdano vrijeme</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vrijeme_(fizika)&veaction=edit&section=6" title="Uredi odlomak: Zvjezdano vrijeme" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vrijeme_(fizika)&action=edit&section=6" title="Uredi kôd odjeljka Zvjezdano vrijeme"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Kazaljka zvjezdanog vremena je <a href="/wiki/Proljetna_to%C4%8Dka" title="Proljetna točka">proljetna točka</a>. Zvjezdano vrijeme jednako je satnom kutu proljetne točke. Zvjezdani dan počinje kada se proljetna točka nalazi u gornjoj kulminaciji. Zvjezdano vrijeme povezano je u svakom času sa satnim kutom i <a href="/wiki/Rektascenzija" title="Rektascenzija">rektascenzijom</a> zvijezde. Ono je ograničeno time na razdoblje od 0 do 24 h. Zvjezdano vrijeme teče onoliko jednoliko koliko se jednoliko <a href="/wiki/Zemljina_rotacija" title="Zemljina rotacija">Zemlja okreće</a>. Tok zvjezdanog vremena određen je samo Zemljinom vrtnjom u odnosu na zvijezde. U toku vremena postoje male promjene. Razlozi tih promjena trojaki su. Jedan je učinak <a href="/wiki/Morske_mijene" title="Morske mijene">plime</a>. Pri gibanju plimnih valova dolazi do <a href="/wiki/Trenje" title="Trenje">trenja</a> između <a href="/wiki/More" title="More">vodenih masa</a> i dna. Trenjem se gubi dio <a href="/wiki/Kineti%C4%8Dka_energija" title="Kinetička energija">kinetičke energije</a> vrtnje pa se ona usporava. Pojava se očituje u stoljetnim razmacima. Zatim, postoje sezonske promjene brzine vrtnje jer se ovisno o <a href="/wiki/Godi%C5%A1nja_doba" title="Godišnja doba">godišnjem dobu</a> mijenjaju jačine i smjerovi <a href="/wiki/Vjetar" title="Vjetar">vjetrova</a> te <a href="/wiki/Morska_struja" title="Morska struja">morskih struja</a>. Stoga se vrtnja i usporava i ubrzava u toku godine, ovisno o tome pomažu li strujanja Zemljinoj vrtnji ili odmažu. Treći razlog krije se u gibanjima u <a href="/wiki/Zemljina_jezgra" title="Zemljina jezgra">Zemljinoj unutrašnjosti</a> i u fizičkom prostoru Zemljine okoline. </p><p>Sunčev dan zadan je ne samo Zemljinom vrtnjom oko vlastite osi, već i <a href="/wiki/Zemljina_putanja" title="Zemljina putanja">Zemljinom godišnjom putanjom</a> oko Sunca. Pritom Zemlja učini jedan okret više oko svoje osi, s obzirom na proljetnu točku (ili zvijezde) nego s obzirom na Sunce. Obilaženje oko Sunca čini jedan dodatni okret Zemlje prema sustavu zvijezda. To znači da će broj zvjezdanih dana u Sunčevoj (tropskoj) godini biti za jedinicu veći od broja Sunčevih dana u Sunčevoj godini: </p> <dl><dd><b>(<i>T</i> + 1) zvjezdani dan = <i>T</i> Sunčev dan</b></dd></dl> <p>gdje je <i>T</i> – <a href="/wiki/Tropska_godina" title="Tropska godina">Sunčeva ili tropska godina</a> koja iznosi 365 d 5 h 48 min 46 s = 365,24219 d, pa dobivamo : </p> <dl><dd>1 zvjezdani dan = 23 h 56 min 4 s</dd></dl> <p>Zvjezdani dan dijeli se sam po sebi u 24h zvjezdanog vremena, a sati, minute i sekunde zvjezdanog vremena takoder traju krace od sata, minuta i sekundi Sunčeva vremena: </p> <dl><dd>1 zvjezdani sat = 59 min 50 s</dd> <dd>1 zvjezdana minuta = 59,8 s</dd></dl> <p>Zvjezdano vrijeme ovisi o tome u kojem se godišnjem dobu nalazimo. Onog časa kada je Sunce u proljetnoj točki s kojom zajedno prolazi kroz gornju kulminaciju podne je (12 h Sunčeva vremena), no istodobno je i početak zvjezdanog dana (0 h zvjezdanog vremena). Narednog će se dana Sunce naći istočnije od proljetne točke jer ono među zvijezdama odmiče na <a href="/wiki/Istok" title="Istok">istok</a>, pa će u dnevnoj vrtnji neba "zaostajati" za zvijezdama i kasnije proći nego proljetna točka. Kada <a href="/wiki/Kut" title="Kut">kut</a> između satnog kruga proljetne točke i Sunca poraste na 90° (<a href="/wiki/Suncostaj" title="Suncostaj">početak ljeta</a>), zvjezdano će vrijeme biti "mlađe" od Sunčeva za 6 h; kada poraste na 180° (početak <a href="/wiki/Jesen" title="Jesen">jeseni</a>), zvjezdano vrijeme jednako je Sunčevom; kada razlika dosegne 270° (početak <a href="/wiki/Zima" title="Zima">zime</a>), zvjezdano će vrijeme biti za 6 h "starije" od Sunčevog. </p> <div class="mw-heading mw-heading4"><h4 id="Srednji_Sunčev_dan"><span id="Srednji_Sun.C4.8Dev_dan"></span>Srednji Sunčev dan</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vrijeme_(fizika)&veaction=edit&section=7" title="Uredi odlomak: Srednji Sunčev dan" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vrijeme_(fizika)&action=edit&section=7" title="Uredi kôd odjeljka Srednji Sunčev dan"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Sunce se ne giba jednolikom brzinom po ekliptici, a <a href="/wiki/Ekliptika" title="Ekliptika">ekliptika</a> se ne podudara s <a href="/wiki/Nebeski_ekvator" title="Nebeski ekvator">nebeskim ekvatorom</a>. Po ekliptici se Sunce ne giba jednoliko jer njegovo prividno gibanje samo odražava pravo gibanje Zemlje oko Sunca; Zemlja se po ekliptičnoj stazi giba promjenjivom <a href="/wiki/Brzina" title="Brzina">brzinom</a>. Stoga Sunce ne prelazi svakog dana jednake kutove po ekliptici. Sunce isto mijenja svoju kutnu udaljenost od nebeskog ekvatora. To znači da ono osim gibanja usporedo s nebeskim ekvatorom izvodi još i gibanje u smjeru okomitom na <a href="/wiki/Ekvator" title="Ekvator">ekvator</a>. Na primjer, dan poslije početka <a href="/wiki/Prolje%C4%87e" title="Proljeće">proljeća</a>, Sunce će se naći nešto sjevernije od nebeskog ekvatora. Dnevni pomaci na sjever ili na jug od nebeskog ekvatora najveći su u doba <a href="/wiki/Ravnodnevnica" class="mw-redirect" title="Ravnodnevnica">ravnodnevnica</a>, a u doba oko <a href="/wiki/Suncostaj" title="Suncostaj">suncostaja</a> Sunce se giba usporedo s nebeskim ekvatorom. To znači, i kada bi se Sunce ekliptikom i gibalo ravnomjerno, njegova se projekcija na nebeski ekvator ne bi gibala ravnomjerno. </p><p>Pravi Sunčevi dani ne traju zato jednako. <b>Srednji Sunčev dan</b> (ili naprosto <a href="/wiki/Dan" title="Dan">dan</a>) je prosjek svih pravih Sunčevih dana u toku tropske ili Sunčeve godine. Danas se trajanje srednjeg Sunčevog dana prati pomoću <a href="/wiki/Atomski_sat" title="Atomski sat">atomskih satova</a>. Godine 1967. dogovoreno je da se umjesto sekunde određene iz gibanja Zemlje, kao jedinica vremena iskoristi atomska sekunda ili sekunda određena atomskim satom. Ta je sekunda povezana s trajanjem tropske ili Sunčeve godine 1900. Sekundom se smatra razdoblje vremena koji je bio 31 556 925,9747 puta sadržan u toj tropskoj godini. Kako se duljina dana i tropske godine s vremenom mijenjaju, to se radi usklađenja vremena dana s kalendarom ubacuje u <a href="/wiki/Kalendar" title="Kalendar">kalendarski</a> dan dodatna (prekobrojna) <a href="/wiki/Sekunda" title="Sekunda">sekunda</a>. </p> <div class="mw-heading mw-heading4"><h4 id="Jednadžba_vremena"><span id="Jednad.C5.BEba_vremena"></span>Jednadžba vremena</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vrijeme_(fizika)&veaction=edit&section=8" title="Uredi odlomak: Jednadžba vremena" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vrijeme_(fizika)&action=edit&section=8" title="Uredi kôd odjeljka Jednadžba vremena"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Prirodne pojave, kao što su izlazak i zalazak Sunca, te gornja <a href="/wiki/Kulminacija" title="Kulminacija">kulminacija</a> (pravo mjesno podne), ovise o gibanju pravog Sunca. Da bi se trenutak dana povezao sa satnom kružnicom na kojoj se nalazi Sunce, ustanovljena je razlika pravog i srednjeg Sunčeva vremena. Razlika je poznata pod nazivom <a href="/wiki/Jednad%C5%BEba_vremena" title="Jednadžba vremena">jednadžba vremena</a>: </p> <dl><dd><b>jednadžba vremena = pravo Sunčevo vrijeme – srednje Sunčevo vrijeme</b></dd></dl> <div class="mw-heading mw-heading4"><h4 id="Srednje_Sunčevo_vrijeme"><span id="Srednje_Sun.C4.8Devo_vrijeme"></span>Srednje Sunčevo vrijeme</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vrijeme_(fizika)&veaction=edit&section=9" title="Uredi odlomak: Srednje Sunčevo vrijeme" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vrijeme_(fizika)&action=edit&section=9" title="Uredi kôd odjeljka Srednje Sunčevo vrijeme"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Pošto se svako vrijeme, i zvjezdano i Sunčevo, mjeri <a href="/wiki/Satni_kut" title="Satni kut">satnim kutom</a> (u odnosu na <a href="/wiki/Meridijan" title="Meridijan">meridijan</a> promatrača), ono je <a href="/wiki/Mjesni_ekvatorski_koordinatni_sustav" title="Mjesni ekvatorski koordinatni sustav">lokalnog karaktera</a>. Svaka <a href="/wiki/Zemljopisna_du%C5%BEina" title="Zemljopisna dužina">zemljopisna dužina</a> ima svoje vrijeme. Ako je kod nas podne, zapadno od nas bit će još jutro, a istočnije od nas bit će popodne. Svakih 15° zemljopisne dužine donosi razliku mjesnih vremena od 1 <a href="/wiki/Sat" title="Sat">sat</a>. Zato je na nekoj zemljopisnoj dužini <i>λ</i>, srednje Sunčevo vrijeme jednako: </p> <dl><dd><i>T<sub>m</sub> = UT ± λ</i></dd></dl> <p>Kod istočnih zemljopisnih dužina predznak je pozitivan, kod zapadnih negativan. Svjetsko ili <a href="/wiki/Univerzalno_vrijeme" title="Univerzalno vrijeme">univerzalno vrijeme</a> <b>UT</b> (<a href="/wiki/Engleski_jezik" title="Engleski jezik">eng</a>. <i>Universal Time</i>) srednje je Sunčevo vrijeme na 0° meridijanu ili <a href="/wiki/Grini%C4%8Dki_meridijan" title="Grinički meridijan">griničkom meridijanu</a>. Zemljopisnu dužinu <i>λ</i> treba izraziti u vremenskim jedinicama koristeći sljedeće odnose: 1 h = 15°; 1 min = 15'; 1 s = 15"; 1° = 4 min; 1' = 4 s; 1" = 0,066 s. </p> <div class="mw-heading mw-heading4"><h4 id="Koordinirano_svjetsko_vrijeme_UTC">Koordinirano svjetsko vrijeme UTC</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vrijeme_(fizika)&veaction=edit&section=10" title="Uredi odlomak: Koordinirano svjetsko vrijeme UTC" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vrijeme_(fizika)&action=edit&section=10" title="Uredi kôd odjeljka Koordinirano svjetsko vrijeme UTC"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>U društvenim zajednicama uspostavljeno je pojasno ili zonsko vrijeme. Umjesto da se svako mjesto ravna po svojem srednjem Sunčevom vremenu koje započinje u mjesnu ponoć, čitave države ili njihovi dijelovi imaju zajedničko vrijeme. Cijela je Zemlja raspodijeljena na 24 <a href="/wiki/Vremenska_zona" title="Vremenska zona">vremenske zone</a> ili pojasa. Središnji meridijani vremenske zone razmaknuti su za 15°. Unutar svake zone poštuje se jedinstveno vrijeme. Pojedine države su uvele i <a href="/wiki/Ljetno_ra%C4%8Dunanje_vremena" title="Ljetno računanje vremena">ljetno računanje vremena</a> (eng. <i>Daylight saving time</i> ili DST), kojim se tijekom ljetnih mjeseci, kazaljke prebacuju obično za jedan sat unaprijed u odnosu na <a href="/wiki/Koordinirano_svjetsko_vrijeme" title="Koordinirano svjetsko vrijeme">koordinirano svjetsko vrijeme</a> (eng. <i>Coordinated Universal Time</i> ili <b>UTC</b>). U <a href="/wiki/Hrvatska" title="Hrvatska">Hrvatskoj</a> se primjenjuje <a href="/wiki/Srednjoeuropsko_vrijeme" title="Srednjoeuropsko vrijeme">srednjoeuropsko vrijeme</a> ili UTC+1 (točnije rečeno srednjoeuropsko zimsko vrijeme), koje je određeno srednjim Sunčevim vremenom za istočnu zemljopisnu dužinu od 15° E, a od 1983. primjenjuje se i ljetno računanje vremena. Kada se želi iskazati vremenski slijed pojava opažanih na različitim zemljopisnim dužinama, kao i prave vremenske razlike, trenutak vremena izražava se pomoću <a href="/wiki/Koordinirano_svjetsko_vrijeme" title="Koordinirano svjetsko vrijeme">koordiniranog svjetskog vremena</a> UTC. </p> <div class="mw-heading mw-heading4"><h4 id="Pravo_Sunčevo_vrijeme"><span id="Pravo_Sun.C4.8Devo_vrijeme"></span>Pravo Sunčevo vrijeme</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vrijeme_(fizika)&veaction=edit&section=11" title="Uredi odlomak: Pravo Sunčevo vrijeme" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vrijeme_(fizika)&action=edit&section=11" title="Uredi kôd odjeljka Pravo Sunčevo vrijeme"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Odnosima pravog i srednjeg Sunčevog vremena, mjesnog i zonskog, koristimo se kada želimo saznati koliko je sati u trenutku pravog vremena. Građansko vrijeme koje primjenjujemo srednje je Sunčevo vrijeme samo za određeni <a href="/wiki/Meridijan" title="Meridijan">meridijan</a>. U nas je to 15° E meridijan. Nalazimo li se 1° istočnije, na 16° E meridijanu (recimo u blizini <a href="/wiki/Zagreb" title="Zagreb">Zagreba</a>), naše srednje vrijeme bit će za 4 minute "starije" (srednjem Sunčevom vremenu treba dodati 4 minute). </p> <div class="mw-heading mw-heading4"><h4 id="Datumska_granica">Datumska granica</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vrijeme_(fizika)&veaction=edit&section=12" title="Uredi odlomak: Datumska granica" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vrijeme_(fizika)&action=edit&section=12" title="Uredi kôd odjeljka Datumska granica"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Trenutak ponoći u nekoj vremenskoj zoni odjeljuje prošli dan od idućeg dana. Dakle, postoji jedna prirodna granica datuma (<a href="/wiki/Nadnevak" title="Nadnevak">nadnevka</a>) koja se neprestano pokreće od vremenske zone do zone. Zato na Zemlji mora postojati još jedna granica datuma, jer dva područja na Zemlji, koja istodobno imaju dva različita datuma, moraju se sučeljavati na dvije, a ne samo na jednoj granici. Zato je postavljena čvrsta datumska granica, i to u najmanje naseljenom području <a href="/wiki/Tihi_ocean" title="Tihi ocean">Tihog oceana</a>. S obje strane granice isto je vrijeme u danu, jer je jednaka osunčanost, ali se susreću dva različita datuma. Izvodimo pravilo da prilikom prelaska datumske granice treba jedan dan oduzeti putuje li se sa zapada na istok, a dodati jedan dan putuje li se s istoka na zapad. Putovanjem na istok putnik zalazi u područje sve "starijeg" dana, mora pomicati satnu kazaljku neprestano unaprijed, pa na čitavom krugu oko Zemlje napuni jedan dan. Zato stekne jedan dan više, pa ga pri prelasku datumske granice mora odbiti. </p> <div class="mw-heading mw-heading4"><h4 id="Sekunda">Sekunda</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vrijeme_(fizika)&veaction=edit&section=13" title="Uredi odlomak: Sekunda" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vrijeme_(fizika)&action=edit&section=13" title="Uredi kôd odjeljka Sekunda"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Sekunda" title="Sekunda">Sekunda</a> je jedinica vremena (znak s), <a href="/wiki/Me%C4%91unarodni_sustav_mjernih_jedinica" title="Međunarodni sustav mjernih jedinica">osnovna SI-jedinica</a>. Naziv potječe od podjele <a href="/wiki/Sat" title="Sat">sata</a> i <a href="/wiki/Stupanj_(kut)" title="Stupanj (kut)">stupnja</a> na manje dijelove (<a href="/wiki/Latinski_jezik" title="Latinski jezik">lat</a>. <i>pars minuta secunda</i>: drugi manji dio). Određena je trajanjem 9 192 631 770 perioda zračenja što odgovara prijelazu između dviju hiperfinih razina osnovnoga stanja <a href="/wiki/Cezij" title="Cezij">cezijeva</a> <a href="/wiki/Izotop" title="Izotop">izotopa</a> <sup>133</sup>Cs na <a href="/wiki/Temperatura" title="Temperatura">temperaturi</a> 0 <a href="/wiki/Kelvin" title="Kelvin">K</a>. Svojedobno je sekunda bila određena kao 86 400-ti dio srednjega <a href="/wiki/Sinodi%C4%8Dki_dan" title="Sinodički dan">Sunčeva dana</a>, a poslije kao određeni dio <a href="/wiki/Tropska_godina" title="Tropska godina">tropske godine</a>.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Vrijeme_u_teoriji_relativnosti">Vrijeme u teoriji relativnosti</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vrijeme_(fizika)&veaction=edit&section=14" title="Uredi odlomak: Vrijeme u teoriji relativnosti" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vrijeme_(fizika)&action=edit&section=14" title="Uredi kôd odjeljka Vrijeme u teoriji relativnosti"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Nonsymmetric_velocity_time_dilation.gif" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/7/72/Nonsymmetric_velocity_time_dilation.gif" decoding="async" width="256" height="256" class="mw-file-element" data-file-width="256" data-file-height="256" /></a><figcaption>S obzirom na referenti sustav (plavi sat), u <a href="/wiki/Teorija_relativnosti" title="Teorija relativnosti">relativno</a> ubrzanom crvenom satu vrijeme će teći sporije.</figcaption></figure> <p>Vrijeme je <a href="/wiki/Skalar" title="Skalar">skalarna</a> veličina. Sve do 20. stoljeća smatralo se da je vrijeme isto za svakoga i na svakom mjestu (<a href="/wiki/Galileo_Galilei" title="Galileo Galilei">Galileo Galilei</a>, <a href="/wiki/Isaac_Newton" title="Isaac Newton">Isaac Newton</a>). Galileijeve transformacije iskazuju stav da je vrijeme za sve referentne sustave isto. Vrijeme se shvaćalo kao tijek. <a href="/wiki/Albert_Einstein" title="Albert Einstein">Albert Einstein</a> u <a href="/wiki/Teorija_relativnosti" title="Teorija relativnosti">teoriji relativnosti</a> postavio je tvrdnju da vrijeme ovisi o <a href="/wiki/Brzina" title="Brzina">brzini</a> gibanja sustava. Ako su na primjer dva sata sinkronizirana i postavljena jedan uz drugi, oni pokazuju isto vrijeme sve dok ostaju jedan uz drugi. Ako se jedan od satova giba nekom vrlo velikom brzinom (usporedivom s <a href="/wiki/Brzina_svjetlosti" title="Brzina svjetlosti">brzinom svjetlosti</a>), a drugi sat ostaje mirovati, onda će gibajući sat pokazivati da je proteklo manje vremena nego na mirujućem satu. Sat koji se giba ide sporije za čimbenik: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \Delta t'=\gamma \,\Delta t={\frac {\Delta t}{\sqrt {1-{\frac {v^{2}}{c^{2}}}}}}\,}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi mathvariant="normal">Δ</mi> <msup> <mi>t</mi> <mo>′</mo> </msup> <mo>=</mo> <mi>γ</mi> <mspace width="thinmathspace" /> <mi mathvariant="normal">Δ</mi> <mi>t</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi mathvariant="normal">Δ</mi> <mi>t</mi> </mrow> <msqrt> <mn>1</mn> <mo>−</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <msup> <mi>v</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> <msup> <mi>c</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mfrac> </mrow> </msqrt> </mfrac> </mrow> <mspace width="thinmathspace" /> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \Delta t'=\gamma \,\Delta t={\frac {\Delta t}{\sqrt {1-{\frac {v^{2}}{c^{2}}}}}}\,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/64dbd28073a6abed57c9d547e8380572a1c00e67" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -4.671ex; width:24.097ex; height:8.176ex;" alt="{\displaystyle \Delta t'=\gamma \,\Delta t={\frac {\Delta t}{\sqrt {1-{\frac {v^{2}}{c^{2}}}}}}\,}"></span></dd></dl> <p>gdje je: <i>v</i> – <a href="/wiki/Brzina" title="Brzina">brzina</a> gibanja sustava, a <i>c</i> – <a href="/wiki/Brzina_svjetlosti" title="Brzina svjetlosti">brzina svjetlosti</a>. Ta se pojava naziva <a href="/wiki/Vremenska_dilatacija" title="Vremenska dilatacija">vremenska dilatacija</a>. Dokazana je <a href="/wiki/Pokus" title="Pokus">pokusima</a> na više načina, na primjer uspoređivanjem <a href="/wiki/Vrijeme_poluraspada" title="Vrijeme poluraspada">vremena poluraspada</a> brzih <a href="/wiki/Mion" title="Mion">miona</a> koje se povećava s brzinom tih <a href="/wiki/%C4%8Cestica" class="mw-redirect" title="Čestica">čestica</a>. </p><p>Dok su se prostor i vrijeme u <a href="/wiki/Klasi%C4%8Dna_mehanika" title="Klasična mehanika">Newtonovoj klasičnoj fizici</a> smatrali odvojenim entitetima, u teoriji relativnosti oni su povezani u jedan četverodimezionalni <a href="/wiki/Prostorvrijeme" title="Prostorvrijeme">prostorvrijeme</a>, pri čem je vrijeme samo jedna od komponenata prostoravremena. Dok su svi smjerovi u prostoru ravnopravni, vrijeme ima svoj smjer od prošlosti preko sadašnjosti u budućnost; smjer vremena je pozitivan, što se očituje na nekoliko načina. <a href="/wiki/Biologija" title="Biologija">Biološki</a> smjer vremena osjeća se kao proces starenja, <a href="/wiki/Termodinamika" title="Termodinamika">termodinamički</a> kao porast <a href="/wiki/Entropija" title="Entropija">entropije</a>, a <a href="/wiki/Kozmologija" title="Kozmologija">kozmološki</a> u činjenici da se <a href="/wiki/Svemir" title="Svemir">svemir</a> širi počevši od svojega vremenskoga početka (<a href="/wiki/Veliki_prasak" title="Veliki prasak">Veliki prasak</a>). Međudjelovanja se u <a href="/wiki/Fizika_elementarnih_%C4%8Destica" title="Fizika elementarnih čestica">fizici elementarnih čestica</a> podvrgavaju diskretnoj simetriji obrata vremena pa se precizno provjerava njegova neobratljivost (T-invarijantnost). U fizici dodatnih dimenzija (više od četiriju dimenzija), u kozmologiji i višedimenzijskim <a href="/wiki/Teorija_struna" title="Teorija struna">teorijama struna</a> i superstruna (supergravitacija) vremenu pripada uvijek samo jedna dimenzija. </p> <div class="mw-heading mw-heading2"><h2 id="Mjerne_jedinice_za_vrijeme">Mjerne jedinice za vrijeme</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vrijeme_(fizika)&veaction=edit&section=15" title="Uredi odlomak: Mjerne jedinice za vrijeme" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vrijeme_(fizika)&action=edit&section=15" title="Uredi kôd odjeljka Mjerne jedinice za vrijeme"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/SI_osnovne_jedinice" title="SI osnovne jedinice">Standardna mjerna jedinica</a> za vrijeme je <a href="/wiki/Sekunda" title="Sekunda">sekunda</a>, skraćeno <b>s</b>. </p><p>Za mjerenje većih vremenskih razdoblja uobičajene su tradicionalne jedinice: </p> <ul><li>1 <a href="/wiki/Minuta" title="Minuta">minuta</a> = 60 <a href="/wiki/Sekunda" title="Sekunda">sekunda</a>;</li> <li>1 <a href="/wiki/Sat" title="Sat">sat</a> = 60 minuta;</li> <li>1 <a href="/wiki/Dan" title="Dan">dan</a> = 24 sata; <ul><li>1 <a href="/wiki/Sinodi%C4%8Dki_dan" title="Sinodički dan">sinodički dan</a> ili Sunčev dan je vrijeme koje proteče između Sunčeve dvije uzastopne istovjetne <a href="/wiki/Kulminacija" title="Kulminacija">kulminacije</a> (gornje u podne ili donje u ponoć). Zemljin sinodički dan definiran kao prosječno vrijeme između dva podneva i iznosi 24 sata;</li> <li>1 <a href="/wiki/Sideri%C4%8Dki_dan" title="Siderički dan">siderički dan</a> ili zvjezdani dan je <a href="/wiki/Period_rotacije" class="mw-redirect" title="Period rotacije">period rotacije</a> <a href="/wiki/Planet" title="Planet">planeta</a> u odnosu na udaljene <a href="/wiki/Zvijezde" class="mw-redirect" title="Zvijezde">zvijezde</a>. Zemljin siderički dan definiran kao vrijeme između dva prolaska <a href="/wiki/Proljetna_to%C4%8Dka" title="Proljetna točka">proljetne točke</a> kroz <a href="/wiki/Nebeski_meridijan" title="Nebeski meridijan">nebeski meridijan</a> i iznosi 23 sati 56 minuta i 4 sekunde;</li></ul></li> <li>1 <a href="/wiki/Tjedan" title="Tjedan">tjedan</a> = 7 dana;</li> <li>1 <a href="/wiki/Mjesec_(period)" class="mw-redirect" title="Mjesec (period)">mjesec</a> = od 28 do 31 dana; <ul><li><a href="/wiki/Sinodi%C4%8Dki_mjesec" title="Sinodički mjesec">sinodički mjesec</a> je razdoblje promjene <a href="/wiki/Mjese%C4%8Deve_mijene" title="Mjesečeve mijene">Mjesečevih mijena</a> koje odražava položaj <a href="/wiki/Mjesec" title="Mjesec">Mjeseca</a> prema <a href="/wiki/Sunce" title="Sunce">Suncu</a>, a iznosi 29,530 59 d = 29 d 12 h 44 min 3 s;</li> <li><a href="/wiki/Sideri%C4%8Dki_mjesec" title="Siderički mjesec">siderički mjesec</a> je razdoblje <a href="/wiki/Mjese%C4%8Deve_mijene" title="Mjesečeve mijene">Mjesečeva obilaska Zemlje</a> s obzirom na <a href="/wiki/Zvijezde" class="mw-redirect" title="Zvijezde">zvijezde</a> (27,321 662 <a href="/wiki/Dan" title="Dan">d</a> = 27 <a href="/wiki/Dan" title="Dan">d</a> 7 <a href="/wiki/Sat" title="Sat">h</a> 43 <a href="/wiki/Minuta" title="Minuta">min</a> 11,6 <a href="/wiki/Sekunda" title="Sekunda">s</a>);</li></ul></li> <li>1 <a href="/wiki/Godina" title="Godina">godina</a> = 12 mjeseci = 365 ili 366 dana (365,2425 d); <ul><li>1 <a href="/wiki/Kalendarska_godina" title="Kalendarska godina">kalendarska godina</a> (<a href="/wiki/Gregorijanski_kalendar" title="Gregorijanski kalendar">Gregorijanskoga kalendara</a>) traje 365 (obična godina) ili 366 dana (<a href="/wiki/Prijestupna_godina" title="Prijestupna godina">prijestupna godina</a>);</li> <li>1 <a href="/wiki/Zvjezdana_godina" title="Zvjezdana godina">zvjezdana ili siderička godina</a> (365 d 6 h 9 min 9,76 s = 365,256363 d) je vrijeme obilaska <a href="/wiki/Zemlja" title="Zemlja">Zemlje</a> oko <a href="/wiki/Sunce" title="Sunce">Sunca</a> s obzirom na sustav dalekih <a href="/wiki/Zvijezda" title="Zvijezda">zvijezda</a>;</li> <li>1 <a href="/wiki/Tropska_godina" title="Tropska godina">tropska ili Sunčeva godina</a> (365 d 5 h 48 min 46 s = 365,24219 d) je vrijeme između dvaju uzastopnih prolazaka Sunca <a href="/wiki/Proljetna_to%C4%8Dka" title="Proljetna točka">proljetnom točkom</a>;</li> <li>1 anomalistička godina (365 d 6 h 13 min 52,6 s = 365,259636 d) je vrijeme potrebno da Zemlja ponovno prođe kroz istu točku na svojoj putanji, to jest kroz <a href="/wiki/Perihel" title="Perihel">perihel</a>;</li> <li>1 eklipsna ili drakonistička godina (346 d 14 h 52 min 54 s = 346,620075 d) je vrijeme između dvaju uzastopnih prolazaka Sunca istim <a href="/wiki/Mjese%C4%8Devi_%C4%8Dvorovi" title="Mjesečevi čvorovi">uzlaznim čvorom Mjesečeve putanje</a>;<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></li></ul></li> <li>1 <a href="/wiki/Desetlje%C4%87e" title="Desetljeće">desetljeće</a> = 10 godina;</li> <li>1 <a href="/wiki/Stolje%C4%87e" title="Stoljeće">stoljeće</a> = 100 godina;</li> <li>1 <a href="/wiki/Tisu%C4%87lje%C4%87e" title="Tisućljeće">tisućljeće</a> = 1000 godina.</li></ul> <div class="mw-heading mw-heading3"><h3 id="Nestandardne_mjerne_jedinice_za_vrijeme">Nestandardne mjerne jedinice za vrijeme</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vrijeme_(fizika)&veaction=edit&section=16" title="Uredi odlomak: Nestandardne mjerne jedinice za vrijeme" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vrijeme_(fizika)&action=edit&section=16" title="Uredi kôd odjeljka Nestandardne mjerne jedinice za vrijeme"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Vijek" class="mw-redirect" title="Vijek">vijek</a></li> <li><a href="/wiki/Era" title="Era">era</a></li> <li><a href="/wiki/Doba" title="Doba">doba</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Izvori">Izvori</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vrijeme_(fizika)&veaction=edit&section=17" title="Uredi odlomak: Izvori" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vrijeme_(fizika)&action=edit&section=17" title="Uredi kôd odjeljka Izvori"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r6541845">.mw-parser-output .reflist{font-size:90%;margin-bottom:0.5em;list-style-type:decimal}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 30em;"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"> <b>vrijeme</b>, <a rel="nofollow" class="external autonumber" href="http://www.enciklopedija.hr/Natuknica.aspx?ID=65498">[1]</a> "Hrvatska enciklopedija", Leksikografski zavod Miroslav Krleža, www.enciklopedija.hr, 2015.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text">N. Jarosik et al (2011). "Seven-year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Sky Maps, Systematic Errors, and Basic Results". "The Astrophysical Journal Supplement Series" 192</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><a href="/wiki/Vladis_Vujnovi%C4%87" title="Vladis Vujnović">Vladis Vujnović</a> : "Astronomija", Školska knjiga, 1989.</span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text"> <b>sekunda</b>, <a rel="nofollow" class="external autonumber" href="http://www.enciklopedija.hr/Natuknica.aspx?ID=55255">[2]</a> "Hrvatska enciklopedija", Leksikografski zavod Miroslav Krleža, www.enciklopedija.hr, 2015.</span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><a href="#cite_ref-5">↑</a></span> <span class="reference-text"> <b>godina</b>, <a rel="nofollow" class="external autonumber" href="http://www.enciklopedija.hr/Natuknica.aspx?ID=22472">[3]</a> "Hrvatska enciklopedija", Leksikografski zavod Miroslav Krleža, www.enciklopedija.hr, 2015.</span> </li> </ol></div></div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Dobavljeno iz "<a dir="ltr" href="https://hr.wikipedia.org/w/index.php?title=Vrijeme_(fizika)&oldid=7073795">https://hr.wikipedia.org/w/index.php?title=Vrijeme_(fizika)&oldid=7073795</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Posebno:Kategorije" title="Posebno:Kategorije">Kategorije</a>: <ul><li><a href="/wiki/Kategorija:Vrijeme" title="Kategorija:Vrijeme">Vrijeme</a></li><li><a href="/wiki/Kategorija:Metafizi%C4%8Dki_pojmovi" title="Kategorija:Metafizički pojmovi">Metafizički pojmovi</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Ova stranica posljednji je put uređivana 24. studenoga 2024. u 00:39.</li> <li id="footer-info-copyright">Tekst je dostupan pod licencijom <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.hr">Creative Commons: Imenuj autora/Dijeli pod istim uvjetima</a>; mogu se primjenjivati i dodatni uvjeti. 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