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Sekunda – Wikipedie
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class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_cs.wikipedia.org&uselang=cs" class=""><span>Podpořte Wikipedii</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Speci%C3%A1ln%C3%AD:Vytvo%C5%99it_%C3%BA%C4%8Det&returnto=Sekunda" title="Doporučujeme vytvořit si účet a přihlásit se, ovšem není to povinné" class=""><span>Vytvoření účtu</span></a> </li> <li id="pt-login-2" 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[o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Přihlášení</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Stránky pro odhlášené editory <a href="/wiki/N%C3%A1pov%C4%9Bda:%C3%9Avod" aria-label="Více informací o editování"><span>dozvědět se více</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Speci%C3%A1ln%C3%AD:Moje_p%C5%99%C3%ADsp%C4%9Bvky" title="Seznam editací provedených z této IP adresy [y]" accesskey="y"><span>Příspěvky</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Speci%C3%A1ln%C3%AD:Moje_diskuse" title="Diskuse o editacích provedených z této IP adresy [n]" accesskey="n"><span>Diskuse</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"><!-- CentralNotice --></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="Projekt"> <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="Obsah" 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">Obsah</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">přesunout do postranního panelu</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">skrýt</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">(úvod)</div> </a> </li> <li id="toc-Definice" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Definice"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Definice</span> </div> </a> <ul id="toc-Definice-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Etymologie" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Etymologie"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Etymologie</span> </div> </a> <ul id="toc-Etymologie-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Historický_vývoj" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Historický_vývoj"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Historický vývoj</span> </div> </a> <ul id="toc-Historický_vývoj-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Další_jednotky" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Další_jednotky"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Další jednotky</span> </div> </a> <button aria-controls="toc-Další_jednotky-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>Přepnout podsekci Další jednotky</span> </button> <ul id="toc-Další_jednotky-sublist" class="vector-toc-list"> <li id="toc-Juliánský_rok" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Juliánský_rok"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Juliánský rok</span> </div> </a> <ul id="toc-Juliánský_rok-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Den" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Den"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2</span> <span>Den</span> </div> </a> <ul id="toc-Den-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Hodina" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Hodina"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.3</span> <span>Hodina</span> </div> </a> <ul id="toc-Hodina-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Minuta" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Minuta"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.4</span> <span>Minuta</span> </div> </a> <ul id="toc-Minuta-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Milisekunda" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Milisekunda"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.5</span> <span>Milisekunda</span> </div> </a> <ul id="toc-Milisekunda-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Mikrosekunda" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Mikrosekunda"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.6</span> <span>Mikrosekunda</span> </div> </a> <ul id="toc-Mikrosekunda-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Nanosekunda" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Nanosekunda"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.7</span> <span>Nanosekunda</span> </div> </a> <ul id="toc-Nanosekunda-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Pikosekunda" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Pikosekunda"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.8</span> <span>Pikosekunda</span> </div> </a> <ul id="toc-Pikosekunda-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Femtosekunda" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Femtosekunda"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.9</span> <span>Femtosekunda</span> </div> </a> <ul id="toc-Femtosekunda-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Attosekunda" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Attosekunda"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.10</span> <span>Attosekunda</span> </div> </a> <ul id="toc-Attosekunda-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Odkazy" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Odkazy"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Odkazy</span> </div> </a> <button aria-controls="toc-Odkazy-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>Přepnout podsekci Odkazy</span> </button> <ul id="toc-Odkazy-sublist" class="vector-toc-list"> <li id="toc-Reference" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Reference"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.1</span> <span>Reference</span> </div> </a> <ul id="toc-Reference-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Literatura" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Literatura"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.2</span> <span>Literatura</span> </div> </a> <ul id="toc-Literatura-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Související_články" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Související_články"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.3</span> <span>Související články</span> </div> </a> <ul id="toc-Související_články-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Externí_odkazy" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Externí_odkazy"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.4</span> <span>Externí odkazy</span> </div> </a> <ul id="toc-Externí_odkazy-sublist" class="vector-toc-list"> </ul> </li> </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="Obsah" 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="Přepnout obsah" > <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">Přepnout obsah</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"><span class="mw-page-title-main">Sekunda</span></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="Přejděte k článku v jiném jazyce. Je dostupný v 160 jazycích" > <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-160" 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">160 jazyků</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Sekonde" title="Sekonde – afrikánština" lang="af" hreflang="af" data-title="Sekonde" data-language-autonym="Afrikaans" data-language-local-name="afrikánština" 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/Sekunde" title="Sekunde – němčina (Švýcarsko)" lang="gsw" hreflang="gsw" data-title="Sekunde" data-language-autonym="Alemannisch" data-language-local-name="němčina (Švýcarsko)" 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%88%B4%E1%8A%AE%E1%8A%95%E1%8B%B5" title="ሴኮንድ – amharština" lang="am" hreflang="am" data-title="ሴኮንድ" data-language-autonym="አማርኛ" data-language-local-name="amharština" 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/Segundo" title="Segundo – aragonština" lang="an" hreflang="an" data-title="Segundo" data-language-autonym="Aragonés" data-language-local-name="aragonština" class="interlanguage-link-target"><span>Aragonés</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AB%D8%A7%D9%86%D9%8A%D8%A9" title="ثانية – arabština" lang="ar" hreflang="ar" data-title="ثانية" data-language-autonym="العربية" data-language-local-name="arabština" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-arc mw-list-item"><a href="https://arc.wikipedia.org/wiki/%DC%AA%DC%A6%DC%A6%DC%90" title="ܪܦܦܐ – aramejština" lang="arc" hreflang="arc" data-title="ܪܦܦܐ" data-language-autonym="ܐܪܡܝܐ" data-language-local-name="aramejština" class="interlanguage-link-target"><span>ܐܪܡܝܐ</span></a></li><li class="interlanguage-link interwiki-ary mw-list-item"><a href="https://ary.wikipedia.org/wiki/%D8%AA%D8%A7%D9%86%D9%8A%D8%A9" title="تانية – arabština (marocká)" lang="ary" hreflang="ary" data-title="تانية" data-language-autonym="الدارجة" data-language-local-name="arabština (marocká)" class="interlanguage-link-target"><span>الدارجة</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D8%B3%D8%A7%D9%86%D9%8A%D9%87" title="سانيه – arabština (egyptská)" lang="arz" hreflang="arz" data-title="سانيه" data-language-autonym="مصرى" data-language-local-name="arabština (egyptská)" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-as mw-list-item"><a href="https://as.wikipedia.org/wiki/%E0%A6%9B%E0%A7%87%E0%A6%95%E0%A7%87%E0%A6%A3%E0%A7%8D%E0%A6%A1" title="ছেকেণ্ড – ásámština" lang="as" hreflang="as" data-title="ছেকেণ্ড" data-language-autonym="অসমীয়া" data-language-local-name="ásámština" 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/Segundu" title="Segundu – asturština" lang="ast" hreflang="ast" data-title="Segundu" data-language-autonym="Asturianu" data-language-local-name="asturština" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Saniy%C9%99" title="Saniyə – ázerbájdžánština" lang="az" hreflang="az" data-title="Saniyə" data-language-autonym="Azərbaycanca" data-language-local-name="ázerbájdžánština" 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%AB%D8%A7%D9%86%DB%8C%D9%87" title="ثانیه – South Azerbaijani" lang="azb" hreflang="azb" data-title="ثانیه" 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%A1%D0%B5%D0%BA%D1%83%D0%BD%D0%B4" title="Секунд – baškirština" lang="ba" hreflang="ba" data-title="Секунд" data-language-autonym="Башҡортса" data-language-local-name="baškirština" class="interlanguage-link-target"><span>Башҡортса</span></a></li><li class="interlanguage-link interwiki-ban mw-list-item"><a href="https://ban.wikipedia.org/wiki/Detik" title="Detik – balijština" lang="ban" hreflang="ban" data-title="Detik" data-language-autonym="Basa Bali" data-language-local-name="balijština" class="interlanguage-link-target"><span>Basa Bali</span></a></li><li class="interlanguage-link interwiki-bar mw-list-item"><a href="https://bar.wikipedia.org/wiki/Sekund" title="Sekund – bavorština" lang="bar" hreflang="bar" data-title="Sekund" data-language-autonym="Boarisch" data-language-local-name="bavorština" 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/Sekond%C4%97" title="Sekondė – žemaitština" lang="sgs" hreflang="sgs" data-title="Sekondė" data-language-autonym="Žemaitėška" data-language-local-name="žemaitština" 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/Segundo" title="Segundo – Central Bikol" lang="bcl" hreflang="bcl" data-title="Segundo" 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%A1%D0%B5%D0%BA%D1%83%D0%BD%D0%B4%D0%B0" title="Секунда – běloruština" lang="be" hreflang="be" data-title="Секунда" data-language-autonym="Беларуская" data-language-local-name="běloruština" 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%A1%D1%8D%D0%BA%D1%83%D0%BD%D0%B4%D0%B0" title="Сэкунда – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Сэкунда" 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-bew mw-list-item"><a href="https://bew.wikipedia.org/wiki/Sekon" title="Sekon – batavština" lang="bew" hreflang="bew" data-title="Sekon" data-language-autonym="Betawi" data-language-local-name="batavština" class="interlanguage-link-target"><span>Betawi</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A1%D0%B5%D0%BA%D1%83%D0%BD%D0%B4%D0%B0" title="Секунда – bulharština" lang="bg" hreflang="bg" data-title="Секунда" data-language-autonym="Български" data-language-local-name="bulharština" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%B8%E0%A7%87%E0%A6%95%E0%A7%87%E0%A6%A8%E0%A7%8D%E0%A6%A1" title="সেকেন্ড – bengálština" lang="bn" hreflang="bn" data-title="সেকেন্ড" data-language-autonym="বাংলা" data-language-local-name="bengálština" 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%A6%E0%BE%90%E0%BD%A2%E0%BC%8B%E0%BD%86%E0%BC%8D" title="སྐར་ཆ། – tibetština" lang="bo" hreflang="bo" data-title="སྐར་ཆ།" data-language-autonym="བོད་ཡིག" data-language-local-name="tibetština" 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/Eilenn_(amzer)" title="Eilenn (amzer) – bretonština" lang="br" hreflang="br" data-title="Eilenn (amzer)" data-language-autonym="Brezhoneg" data-language-local-name="bretonština" 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/Sekunda" title="Sekunda – bosenština" lang="bs" hreflang="bs" data-title="Sekunda" data-language-autonym="Bosanski" data-language-local-name="bosenština" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Segon" title="Segon – katalánština" lang="ca" hreflang="ca" data-title="Segon" data-language-autonym="Català" data-language-local-name="katalánština" 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/Mi%C4%93u" title="Miēu – Mindong" lang="cdo" hreflang="cdo" data-title="Miēu" 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-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%DA%86%D8%B1%DA%A9%DB%95" title="چرکە – kurdština (sorání)" lang="ckb" hreflang="ckb" data-title="چرکە" data-language-autonym="کوردی" data-language-local-name="kurdština (sorání)" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-crh mw-list-item"><a href="https://crh.wikipedia.org/wiki/Saniye" title="Saniye – tatarština (krymská)" lang="crh" hreflang="crh" data-title="Saniye" data-language-autonym="Qırımtatarca" data-language-local-name="tatarština (krymská)" class="interlanguage-link-target"><span>Qırımtatarca</span></a></li><li class="interlanguage-link interwiki-cu mw-list-item"><a href="https://cu.wikipedia.org/wiki/%D0%94%D1%94%D1%B5%D1%82%D1%94%D1%80%D0%BE%D0%BB%D1%94%D0%BF%D1%82%D0%BE" title="Дєѵтєролєпто – staroslověnština" lang="cu" hreflang="cu" data-title="Дєѵтєролєпто" data-language-autonym="Словѣньскъ / ⰔⰎⰑⰂⰡⰐⰠⰔⰍⰟ" data-language-local-name="staroslověnština" 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/%C3%87%D0%B5%D0%BA%D0%BA%D1%83%D0%BD%D1%82" title="Çеккунт – čuvaština" lang="cv" hreflang="cv" data-title="Çеккунт" data-language-autonym="Чӑвашла" data-language-local-name="čuvaština" 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/Eiliad" title="Eiliad – velština" lang="cy" hreflang="cy" data-title="Eiliad" data-language-autonym="Cymraeg" data-language-local-name="velština" 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/Sekund" title="Sekund – dánština" lang="da" hreflang="da" data-title="Sekund" data-language-autonym="Dansk" data-language-local-name="dánština" 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/Sekunde" title="Sekunde – němčina" lang="de" hreflang="de" data-title="Sekunde" data-language-autonym="Deutsch" data-language-local-name="němčina" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%94%CE%B5%CF%85%CF%84%CE%B5%CF%81%CF%8C%CE%BB%CE%B5%CF%80%CF%84%CE%BF" title="Δευτερόλεπτο – řečtina" lang="el" hreflang="el" data-title="Δευτερόλεπτο" data-language-autonym="Ελληνικά" data-language-local-name="řečtina" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Second" title="Second – angličtina" lang="en" hreflang="en" data-title="Second" data-language-autonym="English" data-language-local-name="angličtina" 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/Sekundo" title="Sekundo – esperanto" lang="eo" hreflang="eo" data-title="Sekundo" 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/Segundo" title="Segundo – španělština" lang="es" hreflang="es" data-title="Segundo" data-language-autonym="Español" data-language-local-name="španělština" 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/Sekund" title="Sekund – estonština" lang="et" hreflang="et" data-title="Sekund" data-language-autonym="Eesti" data-language-local-name="estonština" 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/Segundo" title="Segundo – baskičtina" lang="eu" hreflang="eu" data-title="Segundo" data-language-autonym="Euskara" data-language-local-name="baskičtina" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AB%D8%A7%D9%86%DB%8C%D9%87" title="ثانیه – perština" lang="fa" hreflang="fa" data-title="ثانیه" data-language-autonym="فارسی" data-language-local-name="perština" 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/Sekunti" title="Sekunti – finština" lang="fi" hreflang="fi" data-title="Sekunti" data-language-autonym="Suomi" data-language-local-name="finština" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fj mw-list-item"><a href="https://fj.wikipedia.org/wiki/Sekodi" title="Sekodi – fidžijština" lang="fj" hreflang="fj" data-title="Sekodi" data-language-autonym="Na Vosa Vakaviti" data-language-local-name="fidžijština" 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/Seconde_(temps)" title="Seconde (temps) – francouzština" lang="fr" hreflang="fr" data-title="Seconde (temps)" data-language-autonym="Français" data-language-local-name="francouzština" 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/Sekund" title="Sekund – fríština (severní)" lang="frr" hreflang="frr" data-title="Sekund" data-language-autonym="Nordfriisk" data-language-local-name="fríština (severní)" 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/Secont" title="Secont – furlanština" lang="fur" hreflang="fur" data-title="Secont" data-language-autonym="Furlan" data-language-local-name="furlanština" 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/Sekonde" title="Sekonde – fríština (západní)" lang="fy" hreflang="fy" data-title="Sekonde" data-language-autonym="Frysk" data-language-local-name="fríština (západní)" 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/Soicind" title="Soicind – irština" lang="ga" hreflang="ga" data-title="Soicind" data-language-autonym="Gaeilge" data-language-local-name="irština" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gan mw-list-item"><a href="https://gan.wikipedia.org/wiki/%E7%A7%92" title="秒 – čínština (dialekty Gan)" lang="gan" hreflang="gan" data-title="秒" data-language-autonym="贛語" data-language-local-name="čínština (dialekty Gan)" class="interlanguage-link-target"><span>贛語</span></a></li><li class="interlanguage-link interwiki-gcr mw-list-item"><a href="https://gcr.wikipedia.org/wiki/S%C3%A9gonn" title="Ségonn – Guianan Creole" lang="gcr" hreflang="gcr" data-title="Ségonn" 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/Segundo" title="Segundo – galicijština" lang="gl" hreflang="gl" data-title="Segundo" data-language-autonym="Galego" data-language-local-name="galicijština" 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/Aravo%27ive" title="Aravo'ive – guaranština" lang="gn" hreflang="gn" data-title="Aravo'ive" data-language-autonym="Avañe'ẽ" data-language-local-name="guaranština" class="interlanguage-link-target"><span>Avañe'ẽ</span></a></li><li class="interlanguage-link interwiki-gu mw-list-item"><a href="https://gu.wikipedia.org/wiki/%E0%AA%B8%E0%AB%87%E0%AA%95%E0%AA%A8%E0%AB%8D%E0%AA%A1" title="સેકન્ડ – gudžarátština" lang="gu" hreflang="gu" data-title="સેકન્ડ" data-language-autonym="ગુજરાતી" data-language-local-name="gudžarátština" class="interlanguage-link-target"><span>ગુજરાતી</span></a></li><li class="interlanguage-link interwiki-ha mw-list-item"><a href="https://ha.wikipedia.org/wiki/Sakan" title="Sakan – hauština" lang="ha" hreflang="ha" data-title="Sakan" data-language-autonym="Hausa" data-language-local-name="hauština" 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/Mi%C3%A9u" title="Miéu – čínština (dialekty Hakka)" lang="hak" hreflang="hak" data-title="Miéu" data-language-autonym="客家語 / Hak-kâ-ngî" data-language-local-name="čínština (dialekty Hakka)" 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%A9%D7%A0%D7%99%D7%99%D7%94" title="שנייה – hebrejština" lang="he" hreflang="he" data-title="שנייה" data-language-autonym="עברית" data-language-local-name="hebrejština" 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%A5%87%E0%A4%95%E0%A5%87%E0%A4%82%E0%A4%A1" title="सेकेंड – hindština" lang="hi" hreflang="hi" data-title="सेकेंड" data-language-autonym="हिन्दी" data-language-local-name="hindština" 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/Second" title="Second – hindština (Fidži)" lang="hif" hreflang="hif" data-title="Second" data-language-autonym="Fiji Hindi" data-language-local-name="hindština (Fidži)" class="interlanguage-link-target"><span>Fiji Hindi</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Sekunda" title="Sekunda – chorvatština" lang="hr" hreflang="hr" data-title="Sekunda" data-language-autonym="Hrvatski" data-language-local-name="chorvatština" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Segond_(tan)" title="Segond (tan) – haitština" lang="ht" hreflang="ht" data-title="Segond (tan)" data-language-autonym="Kreyòl ayisyen" data-language-local-name="haitština" 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/M%C3%A1sodperc" title="Másodperc – maďarština" lang="hu" hreflang="hu" data-title="Másodperc" data-language-autonym="Magyar" data-language-local-name="maďarština" 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/%D5%8E%D5%A1%D5%B5%D6%80%D5%AF%D5%B5%D5%A1%D5%B6" title="Վայրկյան – arménština" lang="hy" hreflang="hy" data-title="Վայրկյան" data-language-autonym="Հայերեն" data-language-local-name="arménština" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hyw mw-list-item"><a href="https://hyw.wikipedia.org/wiki/%D4%B5%D6%80%D5%AF%D5%BE%D5%A1%D5%B5%D6%80%D5%AF%D5%A5%D5%A1%D5%B6" title="Երկվայրկեան – Western Armenian" lang="hyw" hreflang="hyw" data-title="Երկվայրկեան" data-language-autonym="Արեւմտահայերէն" data-language-local-name="Western Armenian" class="interlanguage-link-target"><span>Արեւմտահայերէն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Secunda" title="Secunda – interlingua" lang="ia" hreflang="ia" data-title="Secunda" 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/Detik" title="Detik – indonéština" lang="id" hreflang="id" data-title="Detik" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonéština" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ie mw-list-item"><a href="https://ie.wikipedia.org/wiki/Seconde" title="Seconde – interlingue" lang="ie" hreflang="ie" data-title="Seconde" data-language-autonym="Interlingue" data-language-local-name="interlingue" class="interlanguage-link-target"><span>Interlingue</span></a></li><li class="interlanguage-link interwiki-ilo mw-list-item"><a href="https://ilo.wikipedia.org/wiki/Segundo" title="Segundo – ilokánština" lang="ilo" hreflang="ilo" data-title="Segundo" data-language-autonym="Ilokano" data-language-local-name="ilokánština" class="interlanguage-link-target"><span>Ilokano</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Sekundo" title="Sekundo – ido" lang="io" hreflang="io" data-title="Sekundo" 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/Sek%C3%BAnda" title="Sekúnda – islandština" lang="is" hreflang="is" data-title="Sekúnda" data-language-autonym="Íslenska" data-language-local-name="islandština" 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/Secondo" title="Secondo – italština" lang="it" hreflang="it" data-title="Secondo" data-language-autonym="Italiano" data-language-local-name="italština" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja badge-Q17437798 badge-goodarticle mw-list-item" title="dobrý článek"><a href="https://ja.wikipedia.org/wiki/%E7%A7%92" title="秒 – japonština" lang="ja" hreflang="ja" data-title="秒" data-language-autonym="日本語" data-language-local-name="japonština" 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/Sekan" title="Sekan – jamajská kreolština" lang="jam" hreflang="jam" data-title="Sekan" data-language-autonym="Patois" data-language-local-name="jamajská kreolština" class="interlanguage-link-target"><span>Patois</span></a></li><li class="interlanguage-link interwiki-jbo mw-list-item"><a href="https://jbo.wikipedia.org/wiki/snidu" title="snidu – lojban" lang="jbo" hreflang="jbo" data-title="snidu" data-language-autonym="La .lojban." data-language-local-name="lojban" class="interlanguage-link-target"><span>La .lojban.</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Detik" title="Detik – javánština" lang="jv" hreflang="jv" data-title="Detik" data-language-autonym="Jawa" data-language-local-name="javánština" 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%AC%E1%83%90%E1%83%9B%E1%83%98" title="წამი – gruzínština" lang="ka" hreflang="ka" data-title="წამი" data-language-autonym="ქართული" data-language-local-name="gruzínština" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kab mw-list-item"><a href="https://kab.wikipedia.org/wiki/Tasint" title="Tasint – kabylština" lang="kab" hreflang="kab" data-title="Tasint" data-language-autonym="Taqbaylit" data-language-local-name="kabylština" 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/K%C9%9Bl%C9%9Bmk%C9%9Bl%C9%9Bm" title="Kɛlɛmkɛlɛm – Kabiye" lang="kbp" hreflang="kbp" data-title="Kɛlɛmkɛlɛm" data-language-autonym="Kabɩyɛ" data-language-local-name="Kabiye" class="interlanguage-link-target"><span>Kabɩyɛ</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%A1%D0%B5%D0%BA%D1%83%D0%BD%D0%B4" title="Секунд – kazaština" lang="kk" hreflang="kk" data-title="Секунд" data-language-autonym="Қазақша" data-language-local-name="kazaština" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%B4%88_(%EC%8B%9C%EA%B0%84)" title="초 (시간) – korejština" lang="ko" hreflang="ko" data-title="초 (시간)" data-language-autonym="한국어" data-language-local-name="korejština" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-krc mw-list-item"><a href="https://krc.wikipedia.org/wiki/%D0%A1%D0%B5%D0%BA%D1%83%D0%BD%D0%B4" title="Секунд – karačajevo-balkarština" lang="krc" hreflang="krc" data-title="Секунд" data-language-autonym="Къарачай-малкъар" data-language-local-name="karačajevo-balkarština" class="interlanguage-link-target"><span>Къарачай-малкъар</span></a></li><li class="interlanguage-link interwiki-ks mw-list-item"><a href="https://ks.wikipedia.org/wiki/%D8%B3%D8%A0%DA%A9%D9%8E%D9%86%D9%9B%DA%88" title="سؠکَنٛڈ – kašmírština" lang="ks" hreflang="ks" data-title="سؠکَنٛڈ" data-language-autonym="कॉशुर / کٲشُر" data-language-local-name="kašmírština" class="interlanguage-link-target"><span>कॉशुर / کٲشُر</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/San%C3%AE" title="Sanî – kurdština" lang="ku" hreflang="ku" data-title="Sanî" data-language-autonym="Kurdî" data-language-local-name="kurdština" 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/Eylen" title="Eylen – kornština" lang="kw" hreflang="kw" data-title="Eylen" data-language-autonym="Kernowek" data-language-local-name="kornština" 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%A1%D0%B5%D0%BA%D1%83%D0%BD%D0%B4%D0%B0" title="Секунда – kyrgyzština" lang="ky" hreflang="ky" data-title="Секунда" data-language-autonym="Кыргызча" data-language-local-name="kyrgyzština" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Secundum" title="Secundum – latina" lang="la" hreflang="la" data-title="Secundum" data-language-autonym="Latina" data-language-local-name="latina" 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/Sekonn" title="Sekonn – lucemburština" lang="lb" hreflang="lb" data-title="Sekonn" data-language-autonym="Lëtzebuergesch" data-language-local-name="lucemburština" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Sec%C3%B3nd" title="Secónd – limburština" lang="li" hreflang="li" data-title="Secónd" data-language-autonym="Limburgs" data-language-local-name="limburština" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Segond" title="Segond – lombardština" lang="lmo" hreflang="lmo" data-title="Segond" data-language-autonym="Lombard" data-language-local-name="lombardština" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Sekund%C4%97" title="Sekundė – litevština" lang="lt" hreflang="lt" data-title="Sekundė" data-language-autonym="Lietuvių" data-language-local-name="litevština" 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/Sekunde" title="Sekunde – lotyština" lang="lv" hreflang="lv" data-title="Sekunde" data-language-autonym="Latviešu" data-language-local-name="lotyština" 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%A5%87%E0%A4%95%E0%A5%87%E0%A4%A3%E0%A5%8D%E0%A4%A1" title="सेकेण्ड – maithiliština" lang="mai" hreflang="mai" data-title="सेकेण्ड" data-language-autonym="मैथिली" data-language-local-name="maithiliština" class="interlanguage-link-target"><span>मैथिली</span></a></li><li class="interlanguage-link interwiki-mg mw-list-item"><a href="https://mg.wikipedia.org/wiki/Segondra" title="Segondra – malgaština" lang="mg" hreflang="mg" data-title="Segondra" data-language-autonym="Malagasy" data-language-local-name="malgaština" class="interlanguage-link-target"><span>Malagasy</span></a></li><li class="interlanguage-link interwiki-min mw-list-item"><a href="https://min.wikipedia.org/wiki/Datiak" title="Datiak – minangkabau" lang="min" hreflang="min" data-title="Datiak" data-language-autonym="Minangkabau" data-language-local-name="minangkabau" class="interlanguage-link-target"><span>Minangkabau</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%A1%D0%B5%D0%BA%D1%83%D0%BD%D0%B4%D0%B0" title="Секунда – makedonština" lang="mk" hreflang="mk" data-title="Секунда" data-language-autonym="Македонски" data-language-local-name="makedonština" 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%9E%E0%B5%8A%E0%B4%9F%E0%B4%BF" title="ഞൊടി – malajálamština" lang="ml" hreflang="ml" data-title="ഞൊടി" data-language-autonym="മലയാളം" data-language-local-name="malajálamština" 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%A1%D0%B5%D0%BA%D1%83%D0%BD%D0%B4" title="Секунд – mongolština" lang="mn" hreflang="mn" data-title="Секунд" data-language-autonym="Монгол" data-language-local-name="mongolština" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%B8%E0%A5%87%E0%A4%95%E0%A4%82%E0%A4%A6" title="सेकंद – maráthština" lang="mr" hreflang="mr" data-title="सेकंद" data-language-autonym="मराठी" data-language-local-name="maráthština" 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/Saat" title="Saat – malajština" lang="ms" hreflang="ms" data-title="Saat" data-language-autonym="Bahasa Melayu" data-language-local-name="malajština" 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%85%E1%80%80%E1%80%B9%E1%80%80%E1%80%94%E1%80%B7%E1%80%BA" title="စက္ကန့် – barmština" lang="my" hreflang="my" data-title="စက္ကန့်" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="barmština" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Sekunn" title="Sekunn – dolnoněmčina" lang="nds" hreflang="nds" data-title="Sekunn" data-language-autonym="Plattdüütsch" data-language-local-name="dolnoněmčina" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%B8%E0%A5%87%E0%A4%95%E0%A5%87%E0%A4%A8%E0%A5%8D%E0%A4%A1" title="सेकेन्ड – nepálština" lang="ne" hreflang="ne" data-title="सेकेन्ड" data-language-autonym="नेपाली" data-language-local-name="nepálština" class="interlanguage-link-target"><span>नेपाली</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Seconde" title="Seconde – nizozemština" lang="nl" hreflang="nl" data-title="Seconde" data-language-autonym="Nederlands" data-language-local-name="nizozemština" 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/Sekund" title="Sekund – norština (nynorsk)" lang="nn" hreflang="nn" data-title="Sekund" data-language-autonym="Norsk nynorsk" data-language-local-name="norština (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/Sekund" title="Sekund – norština (bokmål)" lang="nb" hreflang="nb" data-title="Sekund" data-language-autonym="Norsk bokmål" data-language-local-name="norština (bokmål)" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-nso mw-list-item"><a href="https://nso.wikipedia.org/wiki/Motsotswana" title="Motsotswana – sotština (severní)" lang="nso" hreflang="nso" data-title="Motsotswana" data-language-autonym="Sesotho sa Leboa" data-language-local-name="sotština (severní)" class="interlanguage-link-target"><span>Sesotho sa Leboa</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Segonda" title="Segonda – okcitánština" lang="oc" hreflang="oc" data-title="Segonda" data-language-autonym="Occitan" data-language-local-name="okcitánština" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-om mw-list-item"><a href="https://om.wikipedia.org/wiki/Sekondii" title="Sekondii – oromština" lang="om" hreflang="om" data-title="Sekondii" data-language-autonym="Oromoo" data-language-local-name="oromština" class="interlanguage-link-target"><span>Oromoo</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%B8%E0%A8%95%E0%A8%BF%E0%A9%B0%E0%A8%9F" title="ਸਕਿੰਟ – paňdžábština" lang="pa" hreflang="pa" data-title="ਸਕਿੰਟ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="paňdžábština" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Sekunda" title="Sekunda – polština" lang="pl" hreflang="pl" data-title="Sekunda" data-language-autonym="Polski" data-language-local-name="polština" 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/Second" title="Second – piemonština" lang="pms" hreflang="pms" data-title="Second" data-language-autonym="Piemontèis" data-language-local-name="piemonština" 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/%D8%B3%DA%A9%D9%86%D9%B9" title="سکنٹ – Western Punjabi" lang="pnb" hreflang="pnb" data-title="سکنٹ" 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/%D8%AB%D8%A7%D9%86%D9%8A%D9%87" title="ثانيه – paštština" lang="ps" hreflang="ps" data-title="ثانيه" data-language-autonym="پښتو" data-language-local-name="paštština" 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/Segundo" title="Segundo – portugalština" lang="pt" hreflang="pt" data-title="Segundo" data-language-autonym="Português" data-language-local-name="portugalština" 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/Sikunthu" title="Sikunthu – kečuánština" lang="qu" hreflang="qu" data-title="Sikunthu" data-language-autonym="Runa Simi" data-language-local-name="kečuánština" 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/Secund%C4%83" title="Secundă – rumunština" lang="ro" hreflang="ro" data-title="Secundă" data-language-autonym="Română" data-language-local-name="rumunština" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-roa-tara mw-list-item"><a href="https://roa-tara.wikipedia.org/wiki/Seconne" title="Seconne – Tarantino" lang="nap-x-tara" hreflang="nap-x-tara" data-title="Seconne" data-language-autonym="Tarandíne" data-language-local-name="Tarantino" class="interlanguage-link-target"><span>Tarandíne</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A1%D0%B5%D0%BA%D1%83%D0%BD%D0%B4%D0%B0" title="Секунда – ruština" lang="ru" hreflang="ru" data-title="Секунда" data-language-autonym="Русский" data-language-local-name="ruština" 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%A1%D0%B5%D0%BA%D1%83%D0%BD%D0%B4%D0%B0" title="Секунда – rusínština" lang="rue" hreflang="rue" data-title="Секунда" data-language-autonym="Русиньскый" data-language-local-name="rusínština" 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%A1%D3%A9%D0%BA%D2%AF%D2%AF%D0%BD%D0%B4%D1%8D" title="Сөкүүндэ – jakutština" lang="sah" hreflang="sah" data-title="Сөкүүндэ" data-language-autonym="Саха тыла" data-language-local-name="jakutština" 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%B4%E1%B1%A4%E1%B1%AF%E1%B1%A4%E1%B1%A1" title="ᱴᱤᱯᱤᱡ – santálština" lang="sat" hreflang="sat" data-title="ᱴᱤᱯᱤᱡ" data-language-autonym="ᱥᱟᱱᱛᱟᱲᱤ" data-language-local-name="santálština" class="interlanguage-link-target"><span>ᱥᱟᱱᱛᱟᱲᱤ</span></a></li><li class="interlanguage-link interwiki-sc mw-list-item"><a href="https://sc.wikipedia.org/wiki/Segundu" title="Segundu – sardština" lang="sc" hreflang="sc" data-title="Segundu" data-language-autonym="Sardu" data-language-local-name="sardština" class="interlanguage-link-target"><span>Sardu</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Seicont" title="Seicont – skotština" lang="sco" hreflang="sco" data-title="Seicont" data-language-autonym="Scots" data-language-local-name="skotština" 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/%D8%B3%D9%8A%DA%AA%D9%86%DA%8A" title="سيڪنڊ – sindhština" lang="sd" hreflang="sd" data-title="سيڪنڊ" data-language-autonym="سنڌي" data-language-local-name="sindhština" 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/Sekund" title="Sekund – srbochorvatština" lang="sh" hreflang="sh" data-title="Sekund" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="srbochorvatština" 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%AD%E0%B6%AD%E0%B7%8A%E0%B6%B4%E0%B6%BB%E0%B6%BA" title="තත්පරය – sinhálština" lang="si" hreflang="si" data-title="තත්පරය" data-language-autonym="සිංහල" data-language-local-name="sinhálština" 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/Second" title="Second – Simple English" lang="en-simple" hreflang="en-simple" data-title="Second" 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/Sekunda" title="Sekunda – slovenština" lang="sk" hreflang="sk" data-title="Sekunda" data-language-autonym="Slovenčina" data-language-local-name="slovenština" 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/Sekunda" title="Sekunda – slovinština" lang="sl" hreflang="sl" data-title="Sekunda" data-language-autonym="Slovenščina" data-language-local-name="slovinština" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sn mw-list-item"><a href="https://sn.wikipedia.org/wiki/Chepiri" title="Chepiri – šonština" lang="sn" hreflang="sn" data-title="Chepiri" data-language-autonym="ChiShona" data-language-local-name="šonština" 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/Ilbiriqsi" title="Ilbiriqsi – somálština" lang="so" hreflang="so" data-title="Ilbiriqsi" data-language-autonym="Soomaaliga" data-language-local-name="somálština" 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/Sekonda" title="Sekonda – albánština" lang="sq" hreflang="sq" data-title="Sekonda" data-language-autonym="Shqip" data-language-local-name="albánština" 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%A1%D0%B5%D0%BA%D1%83%D0%BD%D0%B4" title="Секунд – srbština" lang="sr" hreflang="sr" data-title="Секунд" data-language-autonym="Српски / srpski" data-language-local-name="srbština" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Detik" title="Detik – sundština" lang="su" hreflang="su" data-title="Detik" data-language-autonym="Sunda" data-language-local-name="sundština" 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/Sekund" title="Sekund – švédština" lang="sv" hreflang="sv" data-title="Sekund" data-language-autonym="Svenska" data-language-local-name="švédština" 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/Sekunde" title="Sekunde – svahilština" lang="sw" hreflang="sw" data-title="Sekunde" data-language-autonym="Kiswahili" data-language-local-name="svahilština" 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/Sek%C5%8Dnda" title="Sekōnda – slezština" lang="szl" hreflang="szl" data-title="Sekōnda" data-language-autonym="Ślůnski" data-language-local-name="slezština" 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%8A%E0%AE%9F%E0%AE%BF_(%E0%AE%95%E0%AE%BE%E0%AE%B2_%E0%AE%85%E0%AE%B3%E0%AE%B5%E0%AF%81)" title="நொடி (கால அளவு) – tamilština" lang="ta" hreflang="ta" data-title="நொடி (கால அளவு)" data-language-autonym="தமிழ்" data-language-local-name="tamilština" 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%B1%86%E0%B0%95%E0%B0%82%E0%B0%A1%E0%B1%81" title="సెకండు – telugština" lang="te" hreflang="te" data-title="సెకండు" data-language-autonym="తెలుగు" data-language-local-name="telugština" 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%A1%D0%BE%D0%BD%D0%B8%D1%8F" title="Сония – tádžičtina" lang="tg" hreflang="tg" data-title="Сония" data-language-autonym="Тоҷикӣ" data-language-local-name="tádžičtina" 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%B8%A7%E0%B8%B4%E0%B8%99%E0%B8%B2%E0%B8%97%E0%B8%B5" title="วินาที – thajština" lang="th" hreflang="th" data-title="วินาที" data-language-autonym="ไทย" data-language-local-name="thajština" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Segundo" title="Segundo – tagalog" lang="tl" hreflang="tl" data-title="Segundo" 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/Saniye" title="Saniye – turečtina" lang="tr" hreflang="tr" data-title="Saniye" data-language-autonym="Türkçe" data-language-local-name="turečtina" 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%A1%D0%B5%D0%BA%D1%83%D0%BD%D0%B4" title="Секунд – tatarština" lang="tt" hreflang="tt" data-title="Секунд" data-language-autonym="Татарча / tatarça" data-language-local-name="tatarština" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A1%D0%B5%D0%BA%D1%83%D0%BD%D0%B4%D0%B0" title="Секунда – ukrajinština" lang="uk" hreflang="uk" data-title="Секунда" data-language-autonym="Українська" data-language-local-name="ukrajinština" 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/%D8%AB%D8%A7%D9%86%DB%8C%DB%81" title="ثانیہ – urdština" lang="ur" hreflang="ur" data-title="ثانیہ" data-language-autonym="اردو" data-language-local-name="urdština" 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/Soniya" title="Soniya – uzbečtina" lang="uz" hreflang="uz" data-title="Soniya" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbečtina" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vep mw-list-item"><a href="https://vep.wikipedia.org/wiki/Sekund" title="Sekund – vepština" lang="vep" hreflang="vep" data-title="Sekund" data-language-autonym="Vepsän kel’" data-language-local-name="vepština" 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/Gi%C3%A2y" title="Giây – vietnamština" lang="vi" hreflang="vi" data-title="Giây" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamština" 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/Seconde" title="Seconde – vlámština (západní)" lang="vls" hreflang="vls" data-title="Seconde" data-language-autonym="West-Vlams" data-language-local-name="vlámština (západní)" class="interlanguage-link-target"><span>West-Vlams</span></a></li><li class="interlanguage-link interwiki-wa mw-list-item"><a href="https://wa.wikipedia.org/wiki/Sigonde" title="Sigonde – valonština" lang="wa" hreflang="wa" data-title="Sigonde" data-language-autonym="Walon" data-language-local-name="valonština" class="interlanguage-link-target"><span>Walon</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Segundo" title="Segundo – warajština" lang="war" hreflang="war" data-title="Segundo" data-language-autonym="Winaray" data-language-local-name="warajština" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wo mw-list-item"><a href="https://wo.wikipedia.org/wiki/Saa" title="Saa – wolofština" lang="wo" hreflang="wo" data-title="Saa" data-language-autonym="Wolof" data-language-local-name="wolofština" class="interlanguage-link-target"><span>Wolof</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E7%A7%92" title="秒 – čínština (dialekty Wu)" lang="wuu" hreflang="wuu" data-title="秒" data-language-autonym="吴语" data-language-local-name="čínština (dialekty Wu)" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-xmf mw-list-item"><a href="https://xmf.wikipedia.org/wiki/%E1%83%9B%E1%83%94%E1%83%A0%E1%83%A5%E1%83%90" title="მერქა – mingrelština" lang="xmf" hreflang="xmf" data-title="მერქა" data-language-autonym="მარგალური" data-language-local-name="mingrelština" 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%A1%D7%A2%D7%A7%D7%95%D7%A0%D7%93%D7%A2" title="סעקונדע – jidiš" lang="yi" hreflang="yi" data-title="סעקונדע" data-language-autonym="ייִדיש" data-language-local-name="jidiš" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li class="interlanguage-link interwiki-za mw-list-item"><a href="https://za.wikipedia.org/wiki/Miux" title="Miux – čuangština" lang="za" hreflang="za" data-title="Miux" data-language-autonym="Vahcuengh" data-language-local-name="čuangština" 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/%E7%A7%92" title="秒 – čínština" lang="zh" hreflang="zh" data-title="秒" data-language-autonym="中文" data-language-local-name="čínština" 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/%E7%A7%92" title="秒 – čínština (klasická)" lang="lzh" hreflang="lzh" data-title="秒" data-language-autonym="文言" data-language-local-name="čínština (klasická)" 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/Bi%C3%B3" title="Bió – čínština (dialekty Minnan)" lang="nan" hreflang="nan" data-title="Bió" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="čínština (dialekty Minnan)" 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/%E7%A7%92%E9%90%98" title="秒鐘 – kantonština" lang="yue" hreflang="yue" data-title="秒鐘" data-language-autonym="粵語" data-language-local-name="kantonština" class="interlanguage-link-target"><span>粵語</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/Q11574#sitelinks-wikipedia" title="Editovat mezijazykové odkazy" class="wbc-editpage">Upravit odkazy</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="Jmenné prostory"> <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/Sekunda" title="Zobrazit obsahovou stránku [c]" accesskey="c"><span>Článek</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Diskuse:Sekunda" rel="discussion" title="Diskuse ke stránce [t]" accesskey="t"><span>Diskuse</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" class="vector-dropdown-checkbox " aria-label="Změnit variantu jazyka" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">čeština</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Zobrazení"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Sekunda"><span>Číst</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Sekunda&veaction=edit" title="Editovat tuto stránku [v]" accesskey="v"><span>Editovat</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Sekunda&action=edit" title="Editovat zdrojový kód této stránky [e]" accesskey="e"><span>Editovat zdroj</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Sekunda&action=history" title="Starší verze této stránky. [h]" accesskey="h"><span>Zobrazit historii</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Nástroje ke stránce"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Nástroje" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Nástroje</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Nástroje</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">přesunout do postranního panelu</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">skrýt</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Další možnosti" > <div class="vector-menu-heading"> Akce </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Sekunda"><span>Číst</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Sekunda&veaction=edit" title="Editovat tuto stránku [v]" accesskey="v"><span>Editovat</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Sekunda&action=edit" title="Editovat zdrojový kód této stránky [e]" accesskey="e"><span>Editovat zdroj</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Sekunda&action=history"><span>Zobrazit historii</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Obecné </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Speci%C3%A1ln%C3%AD:Co_odkazuje_na/Sekunda" title="Seznam všech wikistránek, které sem odkazují [j]" accesskey="j"><span>Odkazuje sem</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Speci%C3%A1ln%C3%AD:Souvisej%C3%ADc%C3%AD_zm%C4%9Bny/Sekunda" rel="nofollow" title="Nedávné změny stránek, na které je odkazováno [k]" accesskey="k"><span>Související změny</span></a></li><li id="t-upload" class="mw-list-item"><a href="//commons.wikimedia.org/wiki/Special:UploadWizard?uselang=cs" title="Nahrát obrázky či jiná multimédia [u]" accesskey="u"><span>Načíst soubor</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Speci%C3%A1ln%C3%AD:Speci%C3%A1ln%C3%AD_str%C3%A1nky" title="Seznam všech speciálních stránek [q]" accesskey="q"><span>Speciální stránky</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Sekunda&oldid=24413198" title="Trvalý odkaz na současnou verzi této stránky"><span>Trvalý odkaz</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Sekunda&action=info" title="Více informací o této stránce"><span>Informace o stránce</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Speci%C3%A1ln%C3%AD:Citovat&page=Sekunda&id=24413198&wpFormIdentifier=titleform" title="Informace o tom, jak citovat tuto stránku"><span>Citovat stránku</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Speci%C3%A1ln%C3%AD:UrlShortener&url=https%3A%2F%2Fcs.wikipedia.org%2Fwiki%2FSekunda"><span>Získat zkrácené URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Speci%C3%A1ln%C3%AD:QrCode&url=https%3A%2F%2Fcs.wikipedia.org%2Fwiki%2FSekunda"><span>Stáhnout QR kód</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Tisk/export </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Speci%C3%A1ln%C3%AD:Kniha&bookcmd=book_creator&referer=Sekunda"><span>Vytvořit knihu</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Speci%C3%A1ln%C3%AD:DownloadAsPdf&page=Sekunda&action=show-download-screen"><span>Stáhnout jako PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Sekunda&printable=yes" title="Tato stránka v podobě vhodné k tisku [p]" accesskey="p"><span>Verze k tisku</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> Na jiných projektech </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Second" hreflang="en"><span>Wikimedia Commons</span></a></li><li class="wb-otherproject-link wb-otherproject-wikiquote mw-list-item"><a href="https://cs.wikiquote.org/wiki/Sekunda" hreflang="cs"><span>Wikicitáty</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q11574" title="Odkaz na propojenou položku datového úložiště [g]" accesskey="g"><span>Položka Wikidat</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Nástroje ke stránce"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Vzhled"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Vzhled</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">přesunout do postranního panelu</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">skrýt</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Z Wikipedie, otevřené encyklopedie</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="cs" dir="ltr"><div class="uvodni-upozorneni hatnote noprint">Tento článek je o fyzikální jednotce času. Další významy jsou uvedeny na stránce <a href="/wiki/Sekunda_(rozcestn%C3%ADk)" class="mw-disambig" title="Sekunda (rozcestník)">Sekunda (rozcestník)</a>.</div> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Soubor:Flashingsecond.gif" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f5/Flashingsecond.gif/100px-Flashingsecond.gif" decoding="async" width="100" height="100" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f5/Flashingsecond.gif/150px-Flashingsecond.gif 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f5/Flashingsecond.gif/200px-Flashingsecond.gif 2x" data-file-width="288" data-file-height="288" /></a><figcaption>Světélko blikající jednou za sekundu</figcaption></figure> <p><b>Sekunda</b> (značka <b>s</b>, ale někdy též nesprávně označovaná jako <i>sec</i>, <i>sek</i> apod.) je základní jednotka <a href="/wiki/%C4%8Cas" title="Čas">času</a> (nebo také doby trvání)<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> v <a href="/wiki/Soustava_SI" title="Soustava SI">soustavě SI</a>. V běžné mluvě bývá užíváno i slovo <i><a href="/wiki/Vte%C5%99ina" title="Vteřina">vteřina</a></i>, které ale v oblasti vědy, techniky a práva není správné. </p><p>Historicky vznikla sekunda dělením jednoho <a href="/wiki/Den" title="Den">dne</a> <a href="/wiki/Slune%C4%8Dn%C3%AD_%C4%8Das" title="Sluneční čas">slunečního času</a> na 24 <a href="/wiki/Hodina" title="Hodina">hodin</a>, 1 hodiny na 60 <a href="/wiki/Minuta" title="Minuta">minut</a> a 1 minuty na 60 sekund (<i>secunda</i>, latinsky „druhá“, ve smyslu druhého dělení hodiny). Dnes je délka sekundy přesněji odvozena od procesů uvnitř <a href="/wiki/Atom" title="Atom">atomu</a>, kterými se řídí i <a href="/wiki/Atomov%C3%A9_hodiny" title="Atomové hodiny">atomové hodiny</a> a jimi určovaný <a href="/wiki/Mezin%C3%A1rodn%C3%AD_atomov%C3%BD_%C4%8Das" title="Mezinárodní atomový čas">mezinárodní atomový čas</a>. Protože délka slunečního dne <a href="/wiki/Sv%C4%9Btov%C3%BD_%C4%8Das" title="Světový čas">světového času</a> není naprosto přesně 24 × 60 × 60 = 86 400 sekund atomového času, upravuje se čas v některých letech pomocí <a href="/wiki/P%C5%99estupn%C3%A1_sekunda" title="Přestupná sekunda">přestupné sekundy</a> a tím vzniká běžně používaný <a href="/wiki/Koordinovan%C3%BD_sv%C4%9Btov%C3%BD_%C4%8Das" title="Koordinovaný světový čas">koordinovaný světový čas</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Definice">Definice</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=1" title="Editace sekce: Definice" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=1" title="Editovat zdrojový kód sekce Definice"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Sekunda je podle soustavy SI definována jako doba trvání 9 192 631 770 <a href="/wiki/Perioda_(fyzika)" title="Perioda (fyzika)">period</a> <a href="/wiki/Elektromagnetick%C3%A9_z%C3%A1%C5%99en%C3%AD" title="Elektromagnetické záření">záření</a>, které odpovídá přechodu mezi dvěma hladinami <a href="/w/index.php?title=Velmi_jemn%C3%A1_struktura&action=edit&redlink=1" class="new" title="Velmi jemná struktura (stránka neexistuje)">velmi jemné struktury</a> základního stavu <a href="/wiki/Atom" title="Atom">atomu</a> <a href="/wiki/Cesium" title="Cesium"><sup>133</sup>Cs</a>. Tato definice předpokládá cesiový atom v klidu (jedná se tedy o jednotku pro <a href="/wiki/Vlastn%C3%AD_%C4%8Das" title="Vlastní čas">vlastní čas</a><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>) při teplotě <a href="/wiki/Absolutn%C3%AD_nula" title="Absolutní nula">absolutní nuly</a> a zcela bez vnějších vlivů<sup id="cite_ref-si_3-0" class="reference"><a href="#cite_note-si-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> (toho nelze ve skutečnosti dosáhnout, v praxi se proto měří při teplotě řádu <a href="/wiki/Kelvin" title="Kelvin">mikrokelvinů</a> a zavádějí se korekce<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><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>). </p> <div class="mw-heading mw-heading2"><h2 id="Etymologie">Etymologie</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=2" title="Editace sekce: Etymologie" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=2" title="Editovat zdrojový kód sekce Etymologie"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Název jednotky je odvozen od toho, že se jedná po <a href="/wiki/Minuta" title="Minuta">minutách</a> o druhé dělení <a href="/wiki/Hodina" title="Hodina">hodiny</a> – <a href="/wiki/Latina" title="Latina">latinsky</a> <i>pars minuta secunda</i>. (Minuta tak byla <i>pars minuta prima</i> – „první malá část“; ve středověku (<a href="/wiki/Aliboron" title="Aliboron">Aliboron</a>, <a href="/wiki/Roger_Bacon" title="Roger Bacon">Roger Bacon</a>) se používala ještě další <a href="/wiki/%C5%A0edes%C3%A1tkov%C3%A1_soustava" title="Šedesátková soustava">šedesátinné</a> dělení např. <i><a href="/wiki/Tercie" class="mw-disambig" title="Tercie">tercie</a></i> (<i>pars minuta tertia</i>)<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> či <i><a href="/wiki/Kvarta" class="mw-disambig" title="Kvarta">kvarta</a></i>,<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> ale dnes se už sekunda v <a href="/wiki/Soustava_SI" title="Soustava SI">SI</a> dělí pouze <a href="/wiki/Des%C3%ADtkov%C3%A1_soustava" title="Desítková soustava">desetinně</a>; v některých jazycích se však slovo pro šedesátinu sekundy zachovalo (ač neužívané), např. v <a href="/wiki/Pol%C5%A1tina" title="Polština">polštině</a> <span class="cizojazycne" lang="pl" title="polština">tercja</span>, <span class="cizojazycne" lang="pl" title="polština">kwarta</span> či v <a href="/wiki/Arab%C5%A1tina" title="Arabština">arabštině</a> <span class="cizojazycne" lang="ar" dir="rtl" title="arabština">ثالثة</span>‎). Podle tohoto vzoru bylo v 19. století vytvořeno i nové české synonymum <i>vteřina</i> (podrobněji <a href="/wiki/Vte%C5%99ina#Etymologie" title="Vteřina">v příslušném článku</a>), které se v jiných jazycích nevyskytuje. </p> <div class="mw-heading mw-heading2"><h2 id="Historický_vývoj"><span id="Historick.C3.BD_v.C3.BDvoj"></span>Historický vývoj</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=3" title="Editace sekce: Historický vývoj" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=3" title="Editovat zdrojový kód sekce Historický vývoj"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Dělitel 60 (sekund v minutě, resp. minut v hodině) pochází od <a href="/wiki/Babyl%C3%B3n" title="Babylón">Babyloňanů</a>, kteří používali <a href="/wiki/%C5%A0edes%C3%A1tkov%C3%A1_soustava" title="Šedesátková soustava">šedesátkovou</a> <a href="/wiki/%C4%8C%C3%ADseln%C3%A1_soustava" title="Číselná soustava">číselnou soustavu</a>. Babyloňané však svůj čas na šedesátiny nedělili (s výjimkou dne). Hodina byla definována <a href="/wiki/Starov%C4%9Bk%C3%BD_Egypt" title="Starověký Egypt">starověkými Egypťany</a> jako dvanáctina trvání dne nebo noci (kvůli kolísání délky dne v závislosti na ročním období). <a href="/w/index.php?title=Hel%C3%A9nsk%C3%A1_civilizace&action=edit&redlink=1" class="new" title="Helénská civilizace (stránka neexistuje)">Helénští</a> astronomové včetně <a href="/wiki/Hipparchos" title="Hipparchos">Hipparcha</a> a <a href="/wiki/Klaudios_Ptolemaios" title="Klaudios Ptolemaios">Ptolemaia</a> definovali hodinu jako čtyřiadvacetinu <a href="/wiki/Slune%C4%8Dn%C3%AD_%C4%8Das" title="Sluneční čas">středního slunečního dne</a>. Dvojím šedesátinným dělením této hodiny tak vznikla definice sekundy jako 1/86 400 středního slunečního dne. Helénské časové periody jako např. <a href="/wiki/Doba_ob%C4%9Bhu" title="Doba oběhu">synodický měsíc</a> byly obvykle stanoveny velmi přesně, neboť byly <i>vypočítány</i> z pečlivě vybraných <a href="/wiki/Zatm%C4%9Bn%C3%AD_M%C4%9Bs%C3%ADce" title="Zatmění Měsíce">zatmění</a>, mezi kterými uběhly stovky let – samostatně se <i>průměrné</i> synodické měsíce a podobné časové periody nedají <i>změřit</i>. Nicméně, s vývojem hodinového <a href="/wiki/Kyvadlo" title="Kyvadlo">kyvadla</a> pro měření <i>průměrného času</i> (v protikladu k <i>zdánlivému času</i> zobrazovaném slunečními hodinami), se sekunda stala měřitelnou. <a href="/wiki/Lond%C3%BDnsk%C3%A1_kr%C3%A1lovsk%C3%A1_spole%C4%8Dnost" class="mw-redirect" title="Londýnská královská společnost">Londýnská královská společnost</a> navrhla používat sekundové kyvadlo jako jednotku délky již roku <a href="/wiki/1660" title="1660">1660</a>. </p><p>Roku <a href="/wiki/1938" title="1938">1938</a> předložili <a href="/w/index.php?title=Adolf_Scheibe&action=edit&redlink=1" class="new" title="Adolf Scheibe (stránka neexistuje)">Adolf Scheibe</a> a <a href="/w/index.php?title=Udo_Adelsberger&action=edit&redlink=1" class="new" title="Udo Adelsberger (stránka neexistuje)">Udo Adelsberger</a> u <a href="/w/index.php?title=Physikalisch-Technische_Bundesanstalt&action=edit&redlink=1" class="new" title="Physikalisch-Technische Bundesanstalt (stránka neexistuje)">Physikalisch-Technische Bundesanstaltu</a> důkaz, který byl proveden roku <a href="/wiki/1934" title="1934">1934</a> a po očištění od všech pochybností roku <a href="/wiki/1935" title="1935">1935</a> zveřejněn, toho, že rychlost rotace <a href="/wiki/Zem%C4%9B" title="Země">Země</a> není stálá (kvůli zpomalování <a href="/wiki/Slapov%C3%A9_s%C3%ADly" class="mw-redirect" title="Slapové síly">slapovými silami</a> a některým nepravidelným změnám způsobeným prouděním <a href="/wiki/Magma" title="Magma">magmatu</a> mezi <a href="/wiki/Zemsk%C3%BD_pl%C3%A1%C5%A1%C5%A5" title="Zemský plášť">pláštěm</a> a <a href="/wiki/Zemsk%C3%A9_j%C3%A1dro" title="Zemské jádro">zemským jádrem</a>, dlouhodobě též vzdalováním Měsíce od Země). Astronomická délka dne není tedy již dost dobrým základem časových norem. Kvůli zpomalování zemské rotace se tak sluneční den oproti dennímu času posouvá. Ke kompenzaci byly zavedeny <a href="/wiki/P%C5%99estupn%C3%A1_sekunda" title="Přestupná sekunda">přestupné sekundy</a>, aby byl běžně užívaný čas dostatečně přesný a přitom se nelišil od pohybu Slunce po obloze. </p><p>V roce <a href="/wiki/1956" title="1956">1956</a> byla sekunda definována na základě doby oběhu Země okolo <a href="/wiki/Slunce" title="Slunce">Slunce</a> pro konkrétní <a href="/wiki/Ekvinokcium" title="Ekvinokcium">ekvinokcium</a>, protože v té době se už zemská rotace kolem vlastní osy nepovažovala za dostatečně rovnoměrnou, aby mohla být základem pro měření času. Pohyb Země byl popsán v <a href="/w/index.php?title=Newcombovy_slune%C4%8Dn%C3%AD_tabulky&action=edit&redlink=1" class="new" title="Newcombovy sluneční tabulky (stránka neexistuje)">Newcombových slunečních tabulkách</a>, které obsahují vzorec popisující pohyb Slunce k ekvinokciu 1900.0 na základě astronomických pozorování provedených mezi roky <a href="/wiki/1750" title="1750">1750</a> a <a href="/wiki/1892" title="1892">1892</a>. Sekunda tak byla definována jako </p> <dl><dd><i>1 / 31 556 925,9747 <a href="/wiki/Tropick%C3%BD_rok" title="Tropický rok">tropického roku</a> pro 12 hodin 0. ledna 1900 <a href="/w/index.php?title=Efemeridov%C3%BD_%C4%8Das&action=edit&redlink=1" class="new" title="Efemeridový čas (stránka neexistuje)">efemeridového času</a>.</i></dd></dl> <p>Tato definice byla ratifikována na 11. <a href="/wiki/Gener%C3%A1ln%C3%AD_konference_pro_m%C3%ADry_a_v%C3%A1hy" title="Generální konference pro míry a váhy">generální konferenci pro míry a váhy</a>, konané roku <a href="/wiki/1960" title="1960">1960</a>. Tropický rok v definici nebyl změřen, ale byl vypočítán na základě vzorce popisujícího tropický rok, jehož délka se v čase lineárně zkracuje, což je důvod podivného odkazu na specifický <i>okamžitý</i> tropický rok v definici. Protože tato sekunda byla nezávisle proměnná na čase ve slunečních a měsíčních <a href="/wiki/Efemeridy" title="Efemeridy">efemeridách</a> během většiny 20. století (Newcombovy tabulky Slunce byly používány v letech 1900 až 1983 a <a href="/w/index.php?title=Ernest_William_Brown&action=edit&redlink=1" class="new" title="Ernest William Brown (stránka neexistuje)">Brownovy</a> tabulky Měsíce byly používány mezi 1920 až 1983), byla nazvána efemeridová sekunda. </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Soubor:Cesium_clock.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1a/Cesium_clock.JPG/220px-Cesium_clock.JPG" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1a/Cesium_clock.JPG/330px-Cesium_clock.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1a/Cesium_clock.JPG/440px-Cesium_clock.JPG 2x" data-file-width="1600" data-file-height="1200" /></a><figcaption>Cesiový frekvenční standard HP 5061A</figcaption></figure> <p>S vývojem <a href="/wiki/Atomov%C3%A9_hodiny" title="Atomové hodiny">atomových hodin</a> bylo rozhodnuto, že jejich užití bude vhodnějším základem definice sekundy než doba oběhu Země kolem Slunce. </p><p>Následujících několik let pracovali <a href="/w/index.php?title=Louis_Essen&action=edit&redlink=1" class="new" title="Louis Essen (stránka neexistuje)">Louis Essen</a> z anglické <a href="/w/index.php?title=National_Physical_Laboratory&action=edit&redlink=1" class="new" title="National Physical Laboratory (stránka neexistuje)">National Physical Laboratory</a> a <a href="/w/index.php?title=William_Markowitz&action=edit&redlink=1" class="new" title="William Markowitz (stránka neexistuje)">William Markowitz</a> z <a href="/w/index.php?title=United_States_Naval_Observatory&action=edit&redlink=1" class="new" title="United States Naval Observatory (stránka neexistuje)">United States Naval Observatory</a> (USNO) na určení vztahu mezi frekvencí přechodů velmi jemné struktury atomu <a href="/wiki/Cesium" title="Cesium">cesia</a> a efemeridové sekundy.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>Použitím měřící metody společného pozorování („common-view“) založené na přijatých signálech z <a href="/wiki/Rozhlasov%C3%A1_stanice" class="mw-redirect" title="Rozhlasová stanice">rozhlasové stanice</a> <a href="/w/index.php?title=WWV_(stanice)&action=edit&redlink=1" class="new" title="WWV (stanice) (stránka neexistuje)">WWV</a> určili oběžný pohyb <a href="/wiki/M%C4%9Bs%C3%ADc" title="Měsíc">Měsíce</a> okolo Země, ze kterého se dal odvodit zdánlivý pohyb Slunce v časových intervalech odměřených atomovými hodinami. Roku <a href="/wiki/1967" title="1967">1967</a> pak bylo výsledkem přijetí definice tzv. atomové sekundy na 13. generální konferenci pro míry a váhy v <a href="/wiki/Pa%C5%99%C3%AD%C5%BE" title="Paříž">Paříži</a>: </p> <dl><dd><i>doba časového intervalu vymezeného 9 192 631 770 kmity elektromagnetického záření, jež vzniká v atomu základního izotopu cesia 133 při změně jeho energetického stavu mezi hladinami F(3,0) a F(4,0) v nulovém magnetickém poli.</i></dd></dl> <p>Takto definovaná sekunda je ekvivalentem k efemeridové sekundě. </p><p>Definice sekundy byla později roku 1997 vylepšena na setkání <a href="/wiki/Mezin%C3%A1rodn%C3%AD_%C3%BA%C5%99ad_pro_m%C3%ADry_a_v%C3%A1hy" title="Mezinárodní úřad pro míry a váhy">BIPM</a> následujícím dodatkem: </p> <dl><dd><i>Tato definice odkazuje na atom cesia v klidu při teplotě 0 K.</i></dd></dl> <p>Revidovaná definice obsahuje ideální atomové hodiny zahrnující jediný atom cesia emitující jen jednu frekvenci. </p><p>Na 26. zasedání CPGM v r. 2018 byla dohodnuta nejnovější definice sekundy platná od 20. května 2019. Je obsahově stejná, liší se jen stylisticky hlavně tím, že je součástí společné definice všech základních jednotek SI: <br /> <i>Mezinárodní soustava jednotek, SI, je soustava jednotek, v níž</i> </p> <ol><li><i>frekvence hyperjemného přechodu z neporušené základní hladiny v atomu césia</i> <sup>133</sup>Cs <i>je přesně</i> 9 192 631 770 Hz;</li> <li><i>rychlost světla ve vakuu ...</i><br /></li></ol> <p>a poté následuje převod užitých jednotek na jednotky základní: Hz = s<sup>−1</sup>, ... . </p> <div class="mw-heading mw-heading2"><h2 id="Další_jednotky"><span id="Dal.C5.A1.C3.AD_jednotky"></span>Další jednotky</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=4" title="Editace sekce: Další jednotky" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=4" title="Editovat zdrojový kód sekce Další jednotky"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <dl><dd><i>Podrobnější informace naleznete v <a href="/wiki/%C4%8Cas#Jednotky" title="Čas">článku Čas, oddílu Jednotky</a>.</i></dd></dl> <div class="mw-heading mw-heading3"><h3 id="Juliánský_rok"><span id="Juli.C3.A1nsk.C3.BD_rok"></span>Juliánský rok</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=5" title="Editace sekce: Juliánský rok" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=5" title="Editovat zdrojový kód sekce Juliánský rok"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Juli%C3%A1nsk%C3%BD_rok" title="Juliánský rok">Juliánský rok</a> je podle IAU definován jako 365,25 dne, což se rovná 31 557 600 s </p> <div class="mw-heading mw-heading3"><h3 id="Den">Den</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=6" title="Editace sekce: Den" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=6" title="Editovat zdrojový kód sekce Den"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Den" title="Den">Den</a> (značka <b>d</b>) obsahuje 24 hodiny: 1 d = 86 400 s (podle <a href="/wiki/Mezin%C3%A1rodn%C3%AD_astronomick%C3%A1_unie" title="Mezinárodní astronomická unie">IAU</a>) </p> <div class="mw-heading mw-heading3"><h3 id="Hodina">Hodina</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=7" title="Editace sekce: Hodina" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=7" title="Editovat zdrojový kód sekce Hodina"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Hodina" title="Hodina">Hodina</a> (značka <b>h</b>) je šedesát minut: 1 h = 3 600 s </p> <div class="mw-heading mw-heading3"><h3 id="Minuta">Minuta</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=8" title="Editace sekce: Minuta" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=8" title="Editovat zdrojový kód sekce Minuta"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Minuta" title="Minuta">Minuta</a> (značka <b>min</b>) je šedesát sekund: 1 min = 60 s </p> <div class="mw-heading mw-heading3"><h3 id="Milisekunda">Milisekunda</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=9" title="Editace sekce: Milisekunda" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=9" title="Editovat zdrojový kód sekce Milisekunda"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Milisekunda (značka <b>ms</b>) je tisícina sekundy, 1 s = 1 000 ms. </p> <div class="mw-heading mw-heading3"><h3 id="Mikrosekunda">Mikrosekunda</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=10" title="Editace sekce: Mikrosekunda" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=10" title="Editovat zdrojový kód sekce Mikrosekunda"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Mikrosekunda (značka <b>μs</b>) je miliontina sekundy, 1 s = 1 000 000 μs. </p> <div class="mw-heading mw-heading3"><h3 id="Nanosekunda">Nanosekunda</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=11" title="Editace sekce: Nanosekunda" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=11" title="Editovat zdrojový kód sekce Nanosekunda"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Nanosekunda (značka <b>ns</b>) je miliardtina sekundy, 1 s = 10<sup>9</sup> ns. </p> <div class="mw-heading mw-heading3"><h3 id="Pikosekunda">Pikosekunda</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=12" title="Editace sekce: Pikosekunda" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=12" title="Editovat zdrojový kód sekce Pikosekunda"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Pikosekunda (značka <b>ps</b>) je biliontina sekundy, 1 s = 10<sup>12</sup> ps. </p> <div class="mw-heading mw-heading3"><h3 id="Femtosekunda">Femtosekunda</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=13" title="Editace sekce: Femtosekunda" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=13" title="Editovat zdrojový kód sekce Femtosekunda"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Femtosekunda (značka <b>fs</b>) je tisícina biliontiny sekundy, 1 s = 10<sup>15</sup> fs. </p> <div class="mw-heading mw-heading3"><h3 id="Attosekunda">Attosekunda</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=14" title="Editace sekce: Attosekunda" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=14" title="Editovat zdrojový kód sekce Attosekunda"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Attosekunda (značka <b>as</b>) je miliontina biliontiny sekundy, 1 s = 10<sup>18</sup> as. </p> <div class="mw-heading mw-heading2"><h2 id="Odkazy">Odkazy</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=15" title="Editace sekce: Odkazy" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=15" title="Editovat zdrojový kód sekce Odkazy"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Reference">Reference</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=16" title="Editace sekce: Reference" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=16" title="Editovat zdrojový kód sekce Reference"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text">VIM, ČSN IEC 60050-113, odst. 113-01-03 time (čas), 113-01-10 time interval (časový interval), 113-01-12 date (datum, časový údaj), 113-01-13 duration, time (doba, doba trvání), NOTE 5</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www.bipm.org/utils/common/pdf/si_brochure_8.pdf">http://www.bipm.org/utils/common/pdf/si_brochure_8.pdf</a> - The International System of Units, SI units in the framework of general relativity</span> </li> <li id="cite_note-si-3"><span class="mw-cite-backlink"><a href="#cite_ref-si_3-0">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.bipm.org/en/si/si_brochure/chapter2/2-1/second.html">Definice sekundy v brožuře SI, oddíl 2.1.1.3</a>, bipm.org <a rel="nofollow" class="external text" href="https://web.archive.org/web/20190325064502/https://www.bipm.org/en/publications/si-brochure/second.html">Archivováno</a> 25. 3. 2019 na <a href="/wiki/Internet_Archive" title="Internet Archive">Wayback Machine</a>. (anglicky)</span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.bipm.org/utils/en/pdf/si-mep/SI-App2-second.pdf">SI Brochure – 9th edition (2019) – Appendix 2 – 20 May 2019: Mise en pratique for the definition of the second in the SI</a> (anglicky)</span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><a href="#cite_ref-5">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.nrc-cnrc.gc.ca/eng/projects/inms/fountain-clock.html">NRC's Cesium Fountain Clock - FCs1</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20110611151553/http://www.nrc-cnrc.gc.ca/eng/projects/inms/fountain-clock.html">Archivováno</a> 11. 6. 2011 na <a href="/wiki/Internet_Archive" title="Internet Archive">Wayback Machine</a>., National Research Council Canada, Institute for National Measurement Standards (anglicky)</span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><a href="#cite_ref-6">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www.ucl.cas.cz/edicee/data/antologie/zliteratury/VZCL2/68.pdf">http://www.ucl.cas.cz/edicee/data/antologie/zliteratury/VZCL2/68.pdf</a> - Výbor z české literatury husitské doby II.</span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><a href="#cite_ref-7">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://books.google.cz/books?id=pFIEAAAAIAAJ&pg=PA148&vq=fourths&redir_esc=y">http://books.google.cz/books?id=pFIEAAAAIAAJ&pg=PA148&vq=fourths&redir_esc=y</a> - The Chronology of Ancient Nations: An English Version of the Arabic Text of the Athâr-ul-Bâkiya of Albîrûnî, Or "Vestiges of the Past"</span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><a href="#cite_ref-8">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www.leapsecond.com/history/1958-PhysRev-v1-n3-Markowitz-Hall-Essen-Parry.pdf">http://www.leapsecond.com/history/1958-PhysRev-v1-n3-Markowitz-Hall-Essen-Parry.pdf</a> - Frequency of cesium in terms of ephemeris time</span> </li> </ol></div> <div class="mw-heading mw-heading3"><h3 id="Literatura">Literatura</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=17" title="Editace sekce: Literatura" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=17" title="Editovat zdrojový kód sekce Literatura"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Vladimír Vanýsek: <i>Základy astronomie a astrofyziky</i>. Akademie, Praha 1980</li> <li>RNDr. Oldřich Hlad, Ing. Jaroslav Pavlousek: <i>Přehled astronomie</i>. Nakladatelství technické literatury, Praha 1984</li> <li>Marie Bláhová: <i>Historická chronologie</i>. Libri, s. r. o., Praha 2001. <span style="white-space:nowrap"><a href="/wiki/International_Standard_Book_Number" title="International Standard Book Number">ISBN</a> <a href="/wiki/Speci%C3%A1ln%C3%AD:Zdroje_knih/80-7277-024-1" title="Speciální:Zdroje knih/80-7277-024-1"><span class="ISBN">80-7277-024-1</span></a></span></li></ul> <div class="mw-heading mw-heading3"><h3 id="Související_články"><span id="Souvisej.C3.ADc.C3.AD_.C4.8Dl.C3.A1nky"></span>Související články</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=18" title="Editace sekce: Související články" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=18" title="Editovat zdrojový kód sekce Související články"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/P%C5%99estupn%C3%A1_sekunda" title="Přestupná sekunda">Přestupná sekunda</a></li> <li><a href="/wiki/Koordinovan%C3%BD_sv%C4%9Btov%C3%BD_%C4%8Das" title="Koordinovaný světový čas">Koordinovaný světový čas</a></li> <li><a href="/wiki/Soustava_SI" title="Soustava SI">Soustava SI</a></li> <li><a href="/wiki/Hertz" title="Hertz">Hertz</a></li> <li><a href="/wiki/Becquerel" title="Becquerel">Becquerel</a></li></ul> <div class="mw-heading mw-heading3"><h3 id="Externí_odkazy"><span id="Extern.C3.AD_odkazy"></span>Externí odkazy</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sekunda&veaction=edit&section=19" title="Editace sekce: Externí odkazy" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sekunda&action=edit&section=19" title="Editovat zdrojový kód sekce Externí odkazy"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><span class="wd"><span class="sisterproject sisterproject-commons"><span class="sisterproject_image"><span typeof="mw:File"><a href="/wiki/Wikimedia_Commons" title="Wikimedia Commons"><img alt="Logo Wikimedia Commons" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/12px-Commons-logo.svg.png" decoding="async" width="12" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/24px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span></span> <span class="sisterproject_text">Obrázky, zvuky či videa k tématu <span class="sisterproject_text_target"><a href="https://commons.wikimedia.org/wiki/Category:Second" class="extiw" title="c:Category:Second">sekunda</a></span> na <a href="/wiki/Wikimedia_Commons" title="Wikimedia Commons">Wikimedia Commons</a></span></span></span><i> </i></li> <li><span class="sisterproject sisterproject-wikiquote"><span class="sisterproject_image"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/13px-Wikiquote-logo.svg.png" decoding="async" width="13" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/20px-Wikiquote-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/27px-Wikiquote-logo.svg.png 2x" data-file-width="300" data-file-height="355" /></span></span></span> <span class="sisterproject_text"><span class="sisterproject_text_prefix">Téma </span><span class="sisterproject_text_target"><a href="https://cs.wikiquote.org/wiki/Sekunda" class="extiw" title="q:Sekunda">Sekunda</a></span><span class="sisterproject_text_suffix"> ve Wikicitátech</span></span></span></li> <li><span class="sisterproject sisterproject-wiktionary"><span class="sisterproject_image"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/97/Wiktionary-logo-cs.svg/16px-Wiktionary-logo-cs.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/97/Wiktionary-logo-cs.svg/24px-Wiktionary-logo-cs.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/97/Wiktionary-logo-cs.svg/32px-Wiktionary-logo-cs.svg.png 2x" data-file-width="411" data-file-height="411" /></span></span></span> <span class="sisterproject_text"><span class="sisterproject_text_prefix">Slovníkové heslo </span><span class="sisterproject_text_target"><a href="https://cs.wiktionary.org/wiki/sekunda" class="extiw" title="wikt:sekunda">sekunda</a></span><span class="sisterproject_text_suffix"> ve Wikislovníku</span></span></span></li></ul> <div class="navbox noprint" title="SI jednotky"><table title="" class="navbox-navbox mw-collapsible autocollapse nowraplinks noprint" cellspacing="0" data-collapsetext="skrýt" data-expandtext="zobrazit"><style data-mw-deduplicate="TemplateStyles:r17064757">.mw-parser-output .navbox-title .mw-collapsible-toggle{font-weight:normal}</style><tbody><tr> <th class="navbox-title" colspan="3"> <span class="navbox-titletext"><a href="/wiki/Soustava_SI" title="Soustava SI">Soustava SI</a></span> </th> </tr><tr class="navbox-padding"><td></td></tr> <tr> <td class="navbox-group"><a href="/wiki/Soustava_SI#Základní_jednotky" title="Soustava SI">základní jednotky</a></td> <td class="navbox-list navbox-odd hlist"> <div> <ul><li><a href="/wiki/Amp%C3%A9r" title="Ampér">ampér</a></li> <li><a href="/wiki/Kandela" title="Kandela">kandela</a></li> <li><a href="/wiki/Kelvin" title="Kelvin">kelvin</a></li> <li><a href="/wiki/Kilogram" title="Kilogram">kilogram</a></li> <li><a href="/wiki/Metr" title="Metr">metr</a></li> <li><a href="/wiki/Mol_(jednotka)" title="Mol (jednotka)">mol</a></li> <li><a class="mw-selflink selflink">sekunda</a></li></ul></div> </td> <td rowspan="5" class="navbox-image"><span typeof="mw:File"><a href="/wiki/Soubor:SI_base_unit.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c8/SI_base_unit.svg/75px-SI_base_unit.svg.png" decoding="async" width="75" height="75" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c8/SI_base_unit.svg/113px-SI_base_unit.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c8/SI_base_unit.svg/150px-SI_base_unit.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></td> </tr><tr class="navbox-padding"><td></td></tr> <tr> <td class="navbox-group"><a href="/wiki/Odvozen%C3%A1_jednotka_SI" title="Odvozená jednotka SI">odvozené jednotky</a></td> <td class="navbox-list navbox-even hlist"> <div> <li><a href="/wiki/Becquerel" title="Becquerel">becquerel</a></li> <li><a href="/wiki/Coulomb" title="Coulomb">coulomb</a></li> <li><a href="/wiki/Farad" title="Farad">farad</a></li> <li><a href="/wiki/Gray" title="Gray">gray</a></li> <li><a href="/wiki/Henry" title="Henry">henry</a></li> <li><a href="/wiki/Hertz" title="Hertz">hertz</a></li> <li><a href="/wiki/Joule" title="Joule">joule</a></li> <li><a href="/wiki/Katal" title="Katal">katal</a></li> <li><a href="/wiki/Lumen" title="Lumen">lumen</a></li> <li><a href="/wiki/Lux_(jednotka)" title="Lux (jednotka)">lux</a></li> <li><a href="/wiki/Newton" title="Newton">newton</a></li> <li><a href="/wiki/Ohm" title="Ohm">ohm</a></li> <li><a href="/wiki/Pascal_(jednotka)" title="Pascal (jednotka)">pascal</a></li> <li><a href="/wiki/Radi%C3%A1n" title="Radián">radián</a></li> <li><a href="/wiki/Siemens_(jednotka)" title="Siemens (jednotka)">siemens</a></li> <li><a href="/wiki/Sievert" title="Sievert">sievert</a></li> <li><a href="/wiki/Steradi%C3%A1n" title="Steradián">steradián</a></li> <li><a href="/wiki/Stupe%C5%88_Celsia" title="Stupeň Celsia">stupeň Celsia</a></li> <li><a href="/wiki/Tesla_(jednotka)" title="Tesla (jednotka)">tesla</a></li> <li><a href="/wiki/Volt" title="Volt">volt</a></li> <li><a href="/wiki/Watt" title="Watt">watt</a></li> <li><a href="/wiki/Weber_(jednotka)" title="Weber (jednotka)">weber</a></li></div> </td> </tr><tr class="navbox-padding"><td></td></tr> <tr> <td class="navbox-group">další</td> <td class="navbox-list navbox-odd hlist"> <div> <li><a href="/wiki/P%C5%99edpona_soustavy_SI" title="Předpona soustavy SI">předpony soustavy SI</a></li> <li><a href="/w/index.php?title=Syst%C3%A9my_m%C4%9B%C5%99en%C3%AD&action=edit&redlink=1" class="new" title="Systémy měření (stránka neexistuje)">systémy měření</a></li> <li><a href="/wiki/P%C5%99evody_jednotek" class="mw-redirect" title="Převody jednotek">převody jednotek</a></li> <li><a href="/wiki/Nov%C3%A9_definice_SI" title="Nové definice SI">nové definice SI</a></li> <li><a href="/wiki/Mezin%C3%A1rodn%C3%AD_%C3%BA%C5%99ad_pro_m%C3%ADry_a_v%C3%A1hy" title="Mezinárodní úřad pro míry a váhy">Mezinárodní úřad pro míry a váhy</a></li></div> </td> </tr></tbody></table> </div> <style data-mw-deduplicate="TemplateStyles:r23078045">.mw-parser-output .navbox2{box-sizing:border-box;border:1px solid #a2a9b1;width:100%;clear:both;font-size:88%;text-align:center;padding:1px;margin:1em auto 0}.mw-parser-output .navbox2 .navbox2{margin-top:0}.mw-parser-output .navbox2+.navbox2{margin-top:-1px}.mw-parser-output .navbox2-inner,.mw-parser-output .navbox2-subgroup{width:100%}.mw-parser-output .navbox2-group,.mw-parser-output .navbox2-title,.mw-parser-output .navbox2-abovebelow{padding:0.25em 1em;line-height:1.5em;text-align:center}.mw-parser-output th.navbox2-group{white-space:nowrap;text-align:right}.mw-parser-output .navbox2,.mw-parser-output .navbox2-subgroup{background-color:#fdfdfd}.mw-parser-output .navbox2-list{line-height:1.5em;border-color:#fdfdfd}.mw-parser-output tr+tr>.navbox2-abovebelow,.mw-parser-output tr+tr>.navbox2-group,.mw-parser-output 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