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href="#Historik"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Historik</span> </div> </a> <button aria-controls="toc-Historik-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>Växla underavsnittet Historik</span> </button> <ul id="toc-Historik-sublist" class="vector-toc-list"> <li id="toc-Egypten" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Egypten"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Egypten</span> </div> </a> <ul id="toc-Egypten-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Kina" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Kina"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Kina</span> </div> </a> <ul id="toc-Kina-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Frankrike" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Frankrike"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.3</span> <span>Frankrike</span> </div> </a> <ul id="toc-Frankrike-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Konsekvenser" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Konsekvenser"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Konsekvenser</span> </div> </a> <ul id="toc-Konsekvenser-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-I_populärkulturen" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#I_populärkulturen"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>I populärkulturen</span> </div> </a> <ul id="toc-I_populärkulturen-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Se_även" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Se_även"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Se även</span> </div> </a> <ul id="toc-Se_även-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Referenser" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Referenser"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Referenser</span> </div> </a> <button aria-controls="toc-Referenser-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>Växla underavsnittet Referenser</span> </button> <ul id="toc-Referenser-sublist" class="vector-toc-list"> <li id="toc-Noter" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Noter"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.1</span> <span>Noter</span> </div> </a> <ul id="toc-Noter-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Källor" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Källor"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.2</span> <span>Källor</span> </div> </a> <ul id="toc-Källor-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Externa_länkar" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Externa_länkar"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Externa länkar</span> </div> </a> <ul id="toc-Externa_länkar-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Innehåll" 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="Växla innehållsförteckningen" > <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">Växla innehållsförteckningen</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">Decimaltid</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="Gå till en artikel på ett annat språk. Tillgänglig på 15 språk" > <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-15" 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">15 språk</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Temps_decimal" title="Temps decimal – katalanska" lang="ca" hreflang="ca" data-title="Temps decimal" data-language-autonym="Català" data-language-local-name="katalanska" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Dezimalzeit" title="Dezimalzeit – tyska" lang="de" hreflang="de" data-title="Dezimalzeit" data-language-autonym="Deutsch" data-language-local-name="tyska" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Decimal_time" title="Decimal time – engelska" lang="en" hreflang="en" data-title="Decimal time" data-language-autonym="English" data-language-local-name="engelska" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Tiempo_decimal" title="Tiempo decimal – spanska" lang="es" hreflang="es" data-title="Tiempo decimal" data-language-autonym="Español" data-language-local-name="spanska" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Dekuma_tempo" title="Dekuma tempo – esperanto" lang="eo" hreflang="eo" data-title="Dekuma tempo" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B2%D9%85%D8%A7%D9%86_%D8%AF%D9%87%E2%80%8C%D8%AF%D9%87%DB%8C" title="زمان ده‌دهی – persiska" lang="fa" hreflang="fa" data-title="زمان ده‌دهی" data-language-autonym="فارسی" data-language-local-name="persiska" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Temps_d%C3%A9cimal" title="Temps décimal – franska" lang="fr" hreflang="fr" data-title="Temps décimal" data-language-autonym="Français" data-language-local-name="franska" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Tempo_decimale" title="Tempo decimale – italienska" lang="it" hreflang="it" data-title="Tempo decimale" data-language-autonym="Italiano" data-language-local-name="italienska" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Decimale_tijd" title="Decimale tijd – nederländska" lang="nl" hreflang="nl" data-title="Decimale tijd" data-language-autonym="Nederlands" data-language-local-name="nederländska" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E5%8D%81%E9%80%B2%E5%8C%96%E6%99%82%E9%96%93" title="十進化時間 – japanska" lang="ja" hreflang="ja" data-title="十進化時間" data-language-autonym="日本語" data-language-local-name="japanska" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Desimaltid" title="Desimaltid – norskt bokmål" lang="nb" hreflang="nb" data-title="Desimaltid" data-language-autonym="Norsk bokmål" data-language-local-name="norskt bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Tempo_decimal" title="Tempo decimal – portugisiska" lang="pt" hreflang="pt" data-title="Tempo decimal" data-language-autonym="Português" data-language-local-name="portugisiska" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%94%D0%B5%D1%81%D1%8F%D1%82%D0%B8%D1%87%D0%BD%D0%BE%D0%B5_%D0%B2%D1%80%D0%B5%D0%BC%D1%8F" title="Десятичное время – ryska" lang="ru" hreflang="ru" data-title="Десятичное время" data-language-autonym="Русский" data-language-local-name="ryska" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E5%8D%81%E9%80%B2%E6%99%82" title="十進時 – kantonesiska" lang="yue" hreflang="yue" data-title="十進時" data-language-autonym="粵語" data-language-local-name="kantonesiska" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%8D%81%E9%80%B2%E6%99%82" title="十進時 – kinesiska" lang="zh" hreflang="zh" data-title="十進時" data-language-autonym="中文" data-language-local-name="kinesiska" class="interlanguage-link-target"><span>中文</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/Q1207405#sitelinks-wikipedia" title="Redigera interwikilänkar" class="wbc-editpage">Redigera länkar</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="Namnrymder"> <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/Decimaltid" title="Visa innehållssidan [c]" accesskey="c"><span>Artikel</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Diskussion:Decimaltid" rel="discussion" title="Diskussion om innehållssidan [t]" accesskey="t"><span>Diskussion</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" 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class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Decimaltid&veaction=edit" title="Redigera denna sida [v]" accesskey="v"><span>Redigera</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Decimaltid&action=edit" title="Redigera wikitexten för den här sidan [e]" accesskey="e"><span>Redigera wikitext</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Decimaltid&action=history" title="Tidigare versioner av sidan [h]" accesskey="h"><span>Visa historik</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Sidverktyg"> <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="Verktyg" > <label 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data-event-name="pinnable-header.vector-page-tools.pin">flytta till sidofältet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">dölj</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Fler alternativ" > <div class="vector-menu-heading"> Åtgärder </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/Decimaltid"><span>Läs</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Decimaltid&veaction=edit" title="Redigera denna sida [v]" accesskey="v"><span>Redigera</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Decimaltid&action=edit" title="Redigera wikitexten för den här sidan [e]" accesskey="e"><span>Redigera wikitext</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Decimaltid&action=history"><span>Visa historik</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Allmänt </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:L%C3%A4nkar_hit/Decimaltid" title="Lista över alla wikisidor som länkar hit [j]" accesskey="j"><span>Sidor som länkar hit</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Special:Senaste_relaterade_%C3%A4ndringar/Decimaltid" rel="nofollow" title="Visa senaste ändringarna av sidor som den här sidan länkar till [k]" accesskey="k"><span>Relaterade ändringar</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:Specialsidor" title="Lista över alla specialsidor [q]" accesskey="q"><span>Specialsidor</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Decimaltid&oldid=49429503" title="Permanent länk till den här versionen av sidan"><span>Permanent länk</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Decimaltid&action=info" title="Mer information om denna sida"><span>Sidinformation</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Special:Citera&page=Decimaltid&id=49429503&wpFormIdentifier=titleform" title="Information om hur den här artikeln kan användas som referens"><span>Använd som referens</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fsv.wikipedia.org%2Fwiki%2FDecimaltid"><span>Hämta förkortad url</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&url=https%3A%2F%2Fsv.wikipedia.org%2Fwiki%2FDecimaltid"><span>Ladda ner QR-kod</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"> Skriv ut/exportera </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=Special:Bok&bookcmd=book_creator&referer=Decimaltid"><span>Skapa en bok</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Special:DownloadAsPdf&page=Decimaltid&action=show-download-screen"><span>Ladda ned som PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Decimaltid&printable=yes" title="Utskriftsvänlig version av den här sidan [p]" accesskey="p"><span>Utskriftsvänlig version</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"> På andra projekt </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/Category:Clockfaces_with_10_sectors" hreflang="en"><span>Commons</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/Q1207405" title="Länk till anslutet databasobjekt [g]" accesskey="g"><span>Wikidata-objekt</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="Sidverktyg"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Utseende"> <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">Utseende</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">flytta till sidofältet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">dölj</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">Från Wikipedia</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="sv" dir="ltr"><p><b>Decimaltid</b>, <i>decimal tid</i>, syftar på ett tidsmått baserat på <a href="/wiki/Decimala_talsystemet" title="Decimala talsystemet">decimala talsystemet</a>. Oftast avses ett system med anor från <a href="/wiki/Franska_revolutionen" title="Franska revolutionen">franska revolutionen</a>, med <a href="/wiki/Dygn" title="Dygn">dygnet</a> indelat i 10 decimaltimmar à vardera 100 decimalminuter, à vardera 100 decimalsekunder. Eftersom det då går 100 000 decimalsekunder på ett dygn, att jämföra med 86 400 vanliga <a href="/wiki/Sekund" title="Sekund">sekunder</a>, blir en decimalsekund något kortare: den motsvarar 0,864 vanliga sekunder. Systemet som den vanliga <a href="/wiki/Ur" title="Ur">klockan</a> bygger på, med 24 <a href="/wiki/Timme" title="Timme">timmar</a>, 60 <a href="/wiki/Minut" title="Minut">minuter</a> och 60 <a href="/wiki/Sekund" title="Sekund">sekunder</a>, är <a href="/wiki/Sexagesimal" class="mw-redirect" title="Sexagesimal">sexagesimalt</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Beskrivning_och_användning"><span id="Beskrivning_och_anv.C3.A4ndning"></span>Beskrivning och användning</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Decimaltid&veaction=edit&section=1" title="Redigera avsnitt: Beskrivning och användning" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Decimaltid&action=edit&section=1" title="Redigera avsnitts källkod: Beskrivning och användning"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Den generella tanken med decimaltid är att det ska vara lätt att räkna. Till exempel: </p> <dl><dd>Ett experiment tar 57 362 sekunder. För de flesta är det inte helt enkelt att uppskatta hur många timmar det motsvarar. Ett experiment som tar 57 362 decimalsekunder kan man däremot direkt se hur lång tid det tar, nämligen 5,7362 decimaltimmar.</dd></dl> <p>Decimaltid används inte i någon större omfattning utanför programmeringssammanhang. Det finns dock ett par webbplatser där man kan hämta en decimaltidsklocka till datorn. </p><p><a href="/wiki/Excel" class="mw-redirect" title="Excel">Excel</a> och flera andra <a href="/wiki/Kalkylprogram" title="Kalkylprogram">kalkylprogram</a> använder decimaltid med dygnet som bas, så att midnatt är heltal och exempelvis 0,25 är klockan 06.00. I Microsofts tideräkning motsvarar talet 1 klockan 00.00 den 1 januari 1900, medan Macintosh börjar med 1 som klockan 00.00 den 2 januari 1904<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-reference-link-bracket">[</span>1<span class="cite-reference-link-bracket">]</span></a></sup>. Därför kan man stöta på värden i stil med "42 103" för ett datum år 2015, ifall värdets talformat inte är inställt på att visa år-månad-dag. Av delvis samma anledning kan inget av systemen hantera datum före 1900-talet.<sup><a href="/wiki/Wikipedia:Introduktion_till_k%C3%A4llh%C3%A4nvisningar" title="Wikipedia:Introduktion till källhänvisningar">[<span title="Denna uppgift behöver källa (2020-07)"><i>källa behövs</i></span>]</a></sup> </p><p>Flera programmeringsspråk, exempelvis <a href="/wiki/C_(programspr%C3%A5k)" title="C (programspråk)">C</a> och <a href="/wiki/Unix" title="Unix">Unix</a>, utgår från sekunder som grundenhet när de hanterar tid och datum, så kallad <a href="/wiki/Unixtid" title="Unixtid">Unixtid</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Historik">Historik</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Decimaltid&veaction=edit&section=2" title="Redigera avsnitt: Historik" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Decimaltid&action=edit&section=2" title="Redigera avsnitts källkod: Historik"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Fil:Clock-french-republic.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2f/Clock-french-republic.jpg/150px-Clock-french-republic.jpg" decoding="async" width="150" height="153" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2f/Clock-french-republic.jpg/225px-Clock-french-republic.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2f/Clock-french-republic.jpg/300px-Clock-french-republic.jpg 2x" data-file-width="936" data-file-height="953" /></a><figcaption>Fransk urtavla med decimaltid.</figcaption></figure> <div class="mw-heading mw-heading3"><h3 id="Egypten">Egypten</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Decimaltid&veaction=edit&section=3" title="Redigera avsnitt: Egypten" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Decimaltid&action=edit&section=3" title="Redigera avsnitts källkod: Egypten"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Enligt <a href="/wiki/Egyptisk_mytologi" class="mw-redirect" title="Egyptisk mytologi">egyptisk mytologi</a> var det guden <a href="/wiki/Thot" title="Thot">Thot</a> som uppfann 365-dagarskalendern. I <a href="/wiki/Forntida_Egypten" title="Forntida Egypten">forntida Egypten</a> delades dygnet in i 10 enheter med 100 underenheter. Underenheterna indelades i sin tur i ytterligare 100 enheter, så att ett dygn fick <span style="white-space:nowrap">100 000 takter.</span> Dessutom var varje egyptisk månad uppdelad på tre perioder om 10 dygn vardera. </p> <div class="mw-heading mw-heading3"><h3 id="Kina">Kina</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Decimaltid&veaction=edit&section=4" title="Redigera avsnitt: Kina" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Decimaltid&action=edit&section=4" title="Redigera avsnitts källkod: Kina"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="noprint huvudartikel" style="font-style:italic;"> <dl><dd>Huvudartikel: <a href="/wiki/Ke" title="Ke">Ke</a></dd></dl></div> <p>I <a href="/wiki/Kina" title="Kina">Kina</a> användes under ett par tusen år decimal dygnstid, ofta tillsammans med <a href="/wiki/Duodecimala_talsystemet" title="Duodecimala talsystemet">duodecimal</a> tidmätning. Dygnet var uppdelat på 100 <b>ke</b> (刻; <a href="/wiki/Pinyin" title="Pinyin">pinyin</a>: <i>kè</i>), en enhet som alltså skulle kunna kallas för <i>centidygn</i>. En ke motsvarade då 14,4 minuter, men fastställdes på 1600-talet under västerländskt inflytande till exakt 15 minuter. Därmed rymdes bara 96 ke per dygn. </p> <div class="mw-heading mw-heading3"><h3 id="Frankrike">Frankrike</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Decimaltid&veaction=edit&section=5" title="Redigera avsnitt: Frankrike" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Decimaltid&action=edit&section=5" title="Redigera avsnitts källkod: Frankrike"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="noprint huvudartikel" style="font-style:italic;"> <dl><dd>Huvudartikel: <a href="/wiki/Franska_revolutionskalendern" title="Franska revolutionskalendern">Franska revolutionskalendern</a></dd></dl></div> <p>Decimaltid introducerades 5 oktober 1793 under <a href="/wiki/Franska_revolutionen" title="Franska revolutionen">Franska revolutionen</a>. Den övergavs igen redan 1795 genom den lag som introducerade <a href="/wiki/Metersystemet" title="Metersystemet">metersystemet</a>. Hela revolutionskalendern togs sedan ur bruk i januari 1806, på grund av fortsatt bristande folklig acceptans för de nya ovana enheterna. </p><p>De franska revolutionärerna synes ha inspirerats av de gamla egyptierna och delat dygnet i 10 decimaltimmar, eller 1 000 decimalminuter, eller 100 000 decimalsekunder. Både "timmar" och "minuter" avvek då förstås starkt från traditionella timmar och minuter. Dekretet av den 24 november 1793 löd: </p> <dl><dd><i>XI. “Le jour, de minuit à minuit, est divisé en dix parties ou heures, chaque partie en dix autres, ainsi de suite jusqu’à la plus petite portion commensurable de la durée”.</i></dd></dl> <p>Detta säger bara att dagen ska delas i tio delar, timmar, vilka i sin tur delas i ytterligare 10 och så vidare så långt man behöver. </p><p>De franska <a href="/wiki/Jesuiter" class="mw-redirect" title="Jesuiter">jesuiternas</a> kunskap om det kinesiska dygnet bestående av 100 ke-kvartar (som jesuiterna var med om att avskaffa) gick troligen revolutionärerna förbi. Däremot använde den franska decimaltiden en tiondels decimaltimme, kallad <i>décime</i>, vilket alltså är samma tidsrymd: ett hundradels dygn. </p> <div class="mw-heading mw-heading2"><h2 id="Konsekvenser">Konsekvenser</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Decimaltid&veaction=edit&section=6" title="Redigera avsnitt: Konsekvenser" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Decimaltid&action=edit&section=6" title="Redigera avsnitts källkod: Konsekvenser"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Även om viss decimaltid alltså är praktiskt för datorer finns två stora hinder för brett genomförande. Dels det omstörtande ingreppet att omdefiniera mängder av <a href="/wiki/SI-enheter" class="mw-redirect" title="SI-enheter">fysikaliska enheter</a> efter en ny längd på sekunden. Dels att det babyloniska systemet med 24*60*60 redan mycket bättre uppfyller den viktiga kulturella funktionen att erbjuda språkliga mätverktyg för tid i flera olika skalor. </p><p>Den kulturella aspekten handlar inte bara om vanans makt. Till skillnad från <a href="/wiki/Massa" title="Massa">massa</a>, där det bara handlar om att vänja om sig och börja räkna med kilogram och milligram i stället för <a href="/wiki/Sk%C3%A5lpund" title="Skålpund">skålpund</a>, så kräver en begriplig tillvaro både långa och korta tidsrymder som grundläggande referenspunkter. Det finns en poäng att ha flera olika enheter. Eftersom dygnet och sekunden skiljer sig åt i storleksordningen 100 000 behöver tusentalsstegen dessutom ändå kompletteras med mellanprefix som deka-, hekto-, centi- och deci-, vilket imiterar den röra som decimaltid kunde vara tänkt att avskaffa. Även med nya enheter skulle man behöva diskutera samma saker, om så en decimalsekund kallas 10 µd (mikrodygn) eller om ett dygn heter 100 ks (kilosekunder) och en tiodagarsvecka 1 Ms. </p> <div class="mw-heading mw-heading2"><h2 id="I_populärkulturen"><span id="I_popul.C3.A4rkulturen"></span>I populärkulturen</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Decimaltid&veaction=edit&section=7" title="Redigera avsnitt: I populärkulturen" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Decimaltid&action=edit&section=7" title="Redigera avsnitts källkod: I populärkulturen"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Decimaltid dyker upp i <a href="/wiki/Science_fiction" title="Science fiction">science fiction-berättelser</a> från tid till annan. I romanen <i>A Deepness in the Sky</i> av trefaldige <a href="/wiki/Hugopriset" title="Hugopriset">Hugovinnaren</a> <a href="/wiki/Vernor_Vinge" title="Vernor Vinge">Vernor Vinge</a>, tecknas den rymdfarande Qeng Ho-kulturen som användare av SI-enheter som <i>ks</i> och <i>Ms</i> för att mäta alla tidsintervall. Romanen <i><a href="/wiki/Accelerando_(roman)" title="Accelerando (roman)">Accelerando</a></i> av <a href="/wiki/Charles_Stross" title="Charles Stross">Charles Stross</a> har flera tillfällen, när enheter som <i>ks</i>, <i>Ms</i> och <i>Ma</i> (megaannus, miljoner år) kommer till användning. </p><p>I TV-serien <i><a href="/wiki/Simpsons" title="Simpsons">The Simpsons</a></i> har rektor Skinner i avsnittet "<a href="/wiki/They_Saved_Lisa%27s_Brain" title="They Saved Lisa's Brain">They Saved Lisa's Brain</a>" repliken: "Tack vare att staden är under <a href="/wiki/Mensa" title="Mensa">Mensas</a> styre, så går tågen inte bara i tid, de går i decimaltid." </p> <div class="mw-heading mw-heading2"><h2 id="Se_även"><span id="Se_.C3.A4ven"></span>Se även</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Decimaltid&veaction=edit&section=8" title="Redigera avsnitt: Se även" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Decimaltid&action=edit&section=8" title="Redigera avsnitts källkod: Se även"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Kvart_(tid)" title="Kvart (tid)">Kvart</a></li> <li><a href="/wiki/12-timmarsklocka" title="12-timmarsklocka">12-timmarsklocka</a></li> <li><a href="/wiki/24-timmarsklocka" title="24-timmarsklocka">24-timmarsklocka</a></li> <li><a href="/wiki/Swatch#Swatch_Internet_Time" title="Swatch">Beats</a></li> <li><a href="/wiki/SI-enheter" class="mw-redirect" title="SI-enheter">SI-enheter</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Referenser">Referenser</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Decimaltid&veaction=edit&section=9" title="Redigera avsnitt: Referenser" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Decimaltid&action=edit&section=9" title="Redigera avsnitts källkod: Referenser"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <dl><dd><span class="plainlinks"><i>Den här artikeln är helt eller delvis baserad på material från <a href="/wiki/Engelskspr%C3%A5kiga_Wikipedia" title="Engelskspråkiga Wikipedia">engelskspråkiga Wikipedia</a>, <a class="external text" href="https://en.wikipedia.org/wiki/Decimal_time">Decimal time</a>, <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Decimal_time&oldid=654755311">3 april 2015</a>.</i></span></dd></dl> <div class="mw-heading mw-heading3"><h3 id="Noter">Noter</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Decimaltid&veaction=edit&section=10" title="Redigera avsnitt: Noter" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Decimaltid&action=edit&section=10" title="Redigera avsnitts källkod: Noter"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><a href="#cite_ref-1">^</a> <span class="reference-text"><cite style="font-style:normal" class="web"><a rel="nofollow" class="external text" href="https://support.microsoft.com/en-us/kb/180162">”XL: The 1900 Date System vs. the 1904 Date System”</a>. <i><span>support.microsoft.com</span></i><span class="printonly">. <a rel="nofollow" class="external free" href="https://support.microsoft.com/en-us/kb/180162">https://support.microsoft.com/en-us/kb/180162</a></span><span class="reference-accessdate">. Läst 10 april 2015</span>.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.btitle=XL%3A+The+1900+Date+System+vs.+the+1904+Date+System&rft.atitle=support.microsoft.com&rft_id=https%3A%2F%2Fsupport.microsoft.com%2Fen-us%2Fkb%2F180162&rfr_id=info:sid/en.wikipedia.org:Decimaltid"><span style="display: none;"> </span></span></span> </li> </ol></div> <div class="mw-heading mw-heading3"><h3 id="Källor"><span id="K.C3.A4llor"></span>Källor</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Decimaltid&veaction=edit&section=11" title="Redigera avsnitt: Källor" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Decimaltid&action=edit&section=11" title="Redigera avsnitts källkod: Källor"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Carrigan, Richard A., Jr. “Decimal Time.” <i><a href="/w/index.php?title=American_Scientist&action=edit&redlink=1" class="new" title="American Scientist [inte skriven än]">American Scientist</a></i>, (May-June 1978), <b>66(3)</b>: 305–313. En senare version finns på svenska i Forskning och framsteg nr 7 (1980), sid 40–43.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Externa_länkar"><span id="Externa_l.C3.A4nkar"></span>Externa länkar</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Decimaltid&veaction=edit&section=12" title="Redigera avsnitt: Externa länkar" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Decimaltid&action=edit&section=12" title="Redigera avsnitts källkod: Externa länkar"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://www.metrictime.eu">www.metrictime.eu</a> Fungerande metertidklocka på internet eller även kallad decimaltid.</li> <li><a rel="nofollow" class="external text" href="http://nrich.maths.org/4818">"Decimal Time"</a> maths.org <span style="font-size:.95em;font-weight:bold;color:var(--color-subtle, #54595d);">(engelska)</span></li> <li><a rel="nofollow" class="external text" href="http://www.decimaltime.hynes.net/p/metric.html">Decimal Time</a>, faktaspäckad bloggpost <span style="font-size:.95em;font-weight:bold;color:var(--color-subtle, #54595d);">(engelska)</span></li> <li><a rel="nofollow" class="external text" href="http://zapatopi.net/metrictime/">A Guide To Metric Time or Decimalized Time</a></li> <li><a rel="nofollow" class="external text" href="http://www.xs4all.nl/~rkeulen/watch/metric.html">Why We Have The Calendar We Have</a> , kalenderhistorik ur "De Rikketik" 1995</li> <li><a rel="nofollow" class="external text" href="http://decimaltime.hynes.net/">Decimal Time</a></li> <li><a rel="nofollow" class="external text" href="http://www.antique-horology.org/_Editorial/RepublicanCalendar/default.htm">Dials & Symbols of the French revolution. The Republican Calendar and Decimal time.</a></li></ul> <style data-mw-deduplicate="TemplateStyles:r56287950">.mw-parser-output table.navbox{border:#aaa 1px solid;width:100%;margin:auto;margin-top:1em;clear:both;font-size:88%;text-align:center;padding:1px}.mw-parser-output link+table.navbox{margin-top:-1px}.mw-parser-output .navbox-title,.mw-parser-output .navbox-abovebelow,.mw-parser-output table.navbox th{text-align:center;padding-left:1em;padding-right:1em}.mw-parser-output .navbox-thlinkcolor .navbox-title button,.mw-parser-output .navbox-thlinkcolor .navbox-title .mw-collapsible-text,.mw-parser-output .navbox-thlinkcolor .navbox-title a{color:inherit}.mw-parser-output .nowraplinks a,.mw-parser-output .nowraplinks .selflink{white-space:nowrap}.mw-parser-output .navbox-group{white-space:nowrap;text-align:right;font-weight:bold;padding-left:1em;padding-right:1em}.mw-parser-output .navbox,.mw-parser-output .navbox-subgroup{background:#fdfdfd}.mw-parser-output .navbox-list{border-color:#fdfdfd}.mw-parser-output .navbox-title,.mw-parser-output table.navbox th{background:#b0c4de}.mw-parser-output .navbox-abovebelow,.mw-parser-output .navbox-group,.mw-parser-output .navbox-subgroup .navbox-title{background:#d0e0f5}.mw-parser-output .navbox-subgroup .navbox-group,.mw-parser-output .navbox-subgroup .navbox-abovebelow{background:#deeafa}.mw-parser-output .navbox-even{background:#f7f7f7}.mw-parser-output .navbox-odd{background:transparent}</style><table class="navbox" style="border-spacing:0; ;"><tbody><tr><td style="padding:2px;"><table class="collapsible autocollapse" style="width:100%;border-spacing:0;background:transparent;color:inherit;;"><tbody><tr><th style=";" colspan="3" class="navbox-title"><div style="float:left; width:3em;text-align:left;"><div class="noprint plainlinks" style="background-color:transparent; padding:0; white-space:nowrap; font-weight:normal; font-size:80%; border:none;; color: inherit;"><a href="/wiki/Mall:Tid" title="Mall:Tid"><span title="Visa denna mall" style="border:none;;">v</span></a> <span style="font-size:80%;">•</span> <a class="external text" href="https://sv.wikipedia.org/w/index.php?title=Mall:Tid&action=edit"><span style="border:none;;" title="Redigera den här mallen">r</span></a></div></div><span style="font-size:110%;"><a href="/wiki/Tid" title="Tid">Tid</a></span></th></tr><tr style="height:2px;"><td></td></tr><tr><td class="navbox-group" style=";;">Tidsskalor</td><td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-odd"><div style="padding:0em 0.25em"><a class="mw-selflink selflink">Decimaltid</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Efemerid" title="Efemerid">Efemeridtid</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Geologisk_tidsskala" title="Geologisk tidsskala">Geologisk tidsskala</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Greenwich_Mean_Time" title="Greenwich Mean Time">Greenwich Mean Time</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Internationell_atomtid" title="Internationell atomtid">Internationell atomtid</a> (TAI)<span style="font-weight:bold;"> · </span> <a href="/wiki/Koordinerad_universell_tid" title="Koordinerad universell tid">Koordinerad universell tid</a> (UTC)<span style="font-weight:bold;"> · </span> <a href="/wiki/Normaltid" title="Normaltid">Normaltid</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Sommartid" title="Sommartid">Sommartid</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Soltid" title="Soltid">Soltid</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Tider%C3%A4kning" title="Tideräkning">Tideräkning</a><span style="font-weight:bold;"> · </span> <a href="/wiki/M%C3%A5nvarv" title="Månvarv">Månvarv</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Stj%C3%A4rntid" title="Stjärntid">Stjärntid</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Tidszon" title="Tidszon">Tidszon</a><span style="font-weight:bold;"> · </span> <a href="/wiki/V%C3%A4rldstid" class="mw-redirect" title="Världstid">Världstid</a></div></td><td style="width:0%;padding:0px 0px 0px 2px;" rowspan="7"><span typeof="mw:File"><a href="/wiki/Fil:Wooden_hourglass_3.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Wooden_hourglass_3.jpg/40px-Wooden_hourglass_3.jpg" decoding="async" width="40" height="81" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Wooden_hourglass_3.jpg/60px-Wooden_hourglass_3.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/70/Wooden_hourglass_3.jpg/80px-Wooden_hourglass_3.jpg 2x" data-file-width="967" data-file-height="1959" /></a></span></td></tr><tr style="height:2px"><td></td></tr><tr><td class="navbox-group" style=";;"><a href="/wiki/Tidm%C3%A4tning" title="Tidmätning">Tidmätning</a></td><td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-even"><div style="padding:0em 0.25em"><a href="/wiki/Tidm%C3%A4tningens_historia" title="Tidmätningens historia">Tidmätningens historia</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Ur" title="Ur">Ur</a>: <a href="/wiki/Armbandsur" title="Armbandsur">Armbandsur</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Atomur" title="Atomur">Atomur</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Fickur" title="Fickur">Fickur</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Kronometer" title="Kronometer">Kronometer</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Kvartsur" title="Kvartsur">Kvartsur</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Pendelur" title="Pendelur">Pendelur</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Solur" title="Solur">Solur</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Timglas" title="Timglas">Timglas</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Vattenur" title="Vattenur">Vattenur</a><span style="font-weight:bold;"> · </span> <a href="/wiki/V%C3%A4ckarur" class="mw-redirect" title="Väckarur">Väckarur</a></div></td></tr><tr style="height:2px"><td></td></tr><tr><td class="navbox-group" style=";;"><a href="/wiki/Datering" title="Datering">Dateringstekniker</a></td><td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-odd"><div style="padding:0em 0.25em"><a href="/wiki/Kol-14-metoden" title="Kol-14-metoden">Kol-14-metoden</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Dendrokronologi" title="Dendrokronologi">Dendrokronologi</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Radiometrisk_datering" title="Radiometrisk datering">Radiometrisk datering</a></div></td></tr><tr style="height:2px"><td></td></tr><tr><td class="navbox-group" style=";;">Övrigt</td><td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-even"><div style="padding:0em 0.25em"><a href="/wiki/Evighet" title="Evighet">Evighet</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Flerdimensionell_tid" title="Flerdimensionell tid">Flerdimensionell tid</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Halveringstid" title="Halveringstid">Halveringstid</a><span style="font-weight:bold;"> · </span> <a href="/wiki/O%C3%A4ndlighet" title="Oändlighet">Oändlighet</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Network_Time_Protocol" title="Network Time Protocol">Network Time Protocol</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Realtid" title="Realtid">Realtid</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Responstid" title="Responstid">Responstid</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Rumtid" title="Rumtid">Rumtid</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Tidshantering" title="Tidshantering">Tidshantering</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Tidslinje" title="Tidslinje">Tidslinje</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Tidsresa" title="Tidsresa">Tidsresa</a><span style="font-weight:bold;"> · </span> <a href="/w/index.php?title=%C3%84ndlighet&action=edit&redlink=1" class="new" title="Ändlighet [inte skriven än]">Ändlighet</a></div></td></tr><tr style="height:2px;"><td></td></tr><tr><td class="navbox-abovebelow" style=";" colspan="3"><i>Se även:</i> <a href="/wiki/Internationella_m%C3%A5ttenhetssystemet" title="Internationella måttenhetssystemet">Internationella måttenhetssystemet</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Kalender" title="Kalender">Kalender</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Tidsperiod" title="Tidsperiod">Tidsperiod</a></td></tr></tbody></table></td></tr></tbody></table>    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