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Japan Standard Time - Wikipedia

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id="toc-Possibility_of_adjusting_the_time_zone" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Possibility_of_adjusting_the_time_zone"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Possibility of adjusting the time zone</span> </div> </a> <ul id="toc-Possibility_of_adjusting_the_time_zone-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>External links</span> </div> </a> <ul id="toc-External_links-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="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="Table of Contents" > <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="Toggle the table of contents" > <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">Toggle the table of contents</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">Japan Standard Time</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="Go to an article in another language. Available in 38 languages" > <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-38" 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">38 languages</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/Japan_Standaardtyd" title="Japan Standaardtyd – Afrikaans" lang="af" hreflang="af" data-title="Japan Standaardtyd" data-language-autonym="Afrikaans" data-language-local-name="Afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AA%D9%88%D9%82%D9%8A%D8%AA_%D8%A7%D9%84%D9%8A%D8%A7%D8%A8%D8%A7%D9%86" title="توقيت اليابان – Arabic" lang="ar" hreflang="ar" data-title="توقيت اليابان" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Fusu_horariu_est%C3%A1ndar_de_Xap%C3%B3n" title="Fusu horariu estándar de Xapón – Asturian" lang="ast" hreflang="ast" data-title="Fusu horariu estándar de Xapón" data-language-autonym="Asturianu" data-language-local-name="Asturian" 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/Yaponiya_standart_vaxt%C4%B1" title="Yaponiya standart vaxtı – Azerbaijani" lang="az" hreflang="az" data-title="Yaponiya standart vaxtı" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%9C%E0%A6%BE%E0%A6%AA%E0%A6%BE%E0%A6%A8_%E0%A6%AE%E0%A6%BE%E0%A6%A8_%E0%A6%B8%E0%A6%AE%E0%A6%AF%E0%A6%BC" title="জাপান মান সময় – Bangla" lang="bn" hreflang="bn" data-title="জাপান মান সময়" data-language-autonym="বাংলা" data-language-local-name="Bangla" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Ji%CC%8Dt-p%C3%BAn_Piau-ch%C3%BAn-s%C3%AE" title="Ji̍t-pún Piau-chún-sî – Minnan" lang="nan" hreflang="nan" data-title="Ji̍t-pún Piau-chún-sî" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="Minnan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%AF%D0%BF%D0%BE%D0%BD%D1%81%D0%BA%D0%BE_%D1%81%D1%82%D0%B0%D0%BD%D0%B4%D0%B0%D1%80%D1%82%D0%BD%D0%BE_%D0%B2%D1%80%D0%B5%D0%BC%D0%B5" title="Японско стандартно време – Bulgarian" lang="bg" hreflang="bg" data-title="Японско стандартно време" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Japonsk%C3%BD_standardn%C3%AD_%C4%8Das" title="Japonský standardní čas – Czech" lang="cs" hreflang="cs" data-title="Japonský standardní čas" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de badge-Q70894304 mw-list-item" title=""><a href="https://de.wikipedia.org/wiki/Japan_Standard_Time" title="Japan Standard Time – German" lang="de" hreflang="de" data-title="Japan Standard Time" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Huso_horario_est%C3%A1ndar_de_Jap%C3%B3n" title="Huso horario estándar de Japón – Spanish" lang="es" hreflang="es" data-title="Huso horario estándar de Japón" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</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%A7%D8%B3%D8%AA%D8%A7%D9%86%D8%AF%D8%A7%D8%B1%D8%AF_%DA%98%D8%A7%D9%BE%D9%86" title="زمان استاندارد ژاپن – Persian" lang="fa" hreflang="fa" data-title="زمان استاندارد ژاپن" data-language-autonym="فارسی" data-language-local-name="Persian" 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/Heure_normale_du_Japon" title="Heure normale du Japon – French" lang="fr" hreflang="fr" data-title="Heure normale du Japon" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%9D%BC%EB%B3%B8_%ED%91%9C%EC%A4%80%EC%8B%9C" title="일본 표준시 – Korean" lang="ko" hreflang="ko" data-title="일본 표준시" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%9C%E0%A4%BE%E0%A4%AA%E0%A4%BE%E0%A4%A8_%E0%A4%AE%E0%A4%BE%E0%A4%A8%E0%A4%95_%E0%A4%B8%E0%A4%AE%E0%A4%AF" title="जापान मानक समय – Hindi" lang="hi" hreflang="hi" data-title="जापान मानक समय" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-ilo mw-list-item"><a href="https://ilo.wikipedia.org/wiki/Pagalagadan_nga_Oras_ti_Hapon" title="Pagalagadan nga Oras ti Hapon – Iloko" lang="ilo" hreflang="ilo" data-title="Pagalagadan nga Oras ti Hapon" data-language-autonym="Ilokano" data-language-local-name="Iloko" class="interlanguage-link-target"><span>Ilokano</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Waktu_Standar_Jepang" title="Waktu Standar Jepang – Indonesian" lang="id" hreflang="id" data-title="Waktu Standar Jepang" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Japan_Standard_Time" title="Japan Standard Time – Italian" lang="it" hreflang="it" data-title="Japan Standard Time" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Wektu_Standar_Jepang" title="Wektu Standar Jepang – Javanese" lang="jv" hreflang="jv" data-title="Wektu Standar Jepang" data-language-autonym="Jawa" data-language-local-name="Javanese" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Jap%C4%81nas_standarta_laiks" title="Japānas standarta laiks – Latvian" lang="lv" hreflang="lv" data-title="Japānas standarta laiks" data-language-autonym="Latviešu" data-language-local-name="Latvian" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D8%AA%D9%88%D9%82%D9%8A%D8%AA_%D8%A7%D9%84%D9%8A%D8%A7%D8%A8%D8%A7%D9%86" title="توقيت اليابان – Egyptian Arabic" lang="arz" hreflang="arz" data-title="توقيت اليابان" data-language-autonym="مصرى" data-language-local-name="Egyptian Arabic" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Waktu_di_Jepun" title="Waktu di Jepun – Malay" lang="ms" hreflang="ms" data-title="Waktu di Jepun" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" 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/Asia/Tokyo" title="Asia/Tokyo – Burmese" lang="my" hreflang="my" data-title="Asia/Tokyo" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="Burmese" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Japanse_Standaardtijd" title="Japanse Standaardtijd – Dutch" lang="nl" hreflang="nl" data-title="Japanse Standaardtijd" data-language-autonym="Nederlands" data-language-local-name="Dutch" 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/%E6%97%A5%E6%9C%AC%E6%A8%99%E6%BA%96%E6%99%82" title="日本標準時 – Japanese" lang="ja" hreflang="ja" data-title="日本標準時" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Czas_japo%C5%84ski" title="Czas japoński – Polish" lang="pl" hreflang="pl" data-title="Czas japoński" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Hora_legal_japonesa" title="Hora legal japonesa – Portuguese" lang="pt" hreflang="pt" data-title="Hora legal japonesa" data-language-autonym="Português" data-language-local-name="Portuguese" 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%AF%D0%BF%D0%BE%D0%BD%D1%81%D0%BA%D0%BE%D0%B5_%D1%81%D1%82%D0%B0%D0%BD%D0%B4%D0%B0%D1%80%D1%82%D0%BD%D0%BE%D0%B5_%D0%B2%D1%80%D0%B5%D0%BC%D1%8F" title="Японское стандартное время – Russian" lang="ru" hreflang="ru" data-title="Японское стандартное время" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%A2%E0%B6%B4%E0%B7%8F%E0%B6%B1_%E0%B7%83%E0%B6%B8%E0%B7%8A%E0%B6%B8%E0%B6%AD_%E0%B7%80%E0%B7%9A%E0%B6%BD%E0%B7%8F%E0%B7%80" title="ජපාන සම්මත වේලාව – Sinhala" lang="si" hreflang="si" data-title="ජපාන සම්මත වේලාව" data-language-autonym="සිංහල" data-language-local-name="Sinhala" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%88%D0%B0%D0%BF%D0%B0%D0%BD%D1%81%D0%BA%D0%BE_%D1%81%D1%82%D0%B0%D0%BD%D0%B4%D0%B0%D1%80%D0%B4%D0%BD%D0%BE_%D0%B2%D1%80%D0%B5%D0%BC%D0%B5" title="Јапанско стандардно време – Serbian" lang="sr" hreflang="sr" data-title="Јапанско стандардно време" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Japanin_aika" title="Japanin aika – Finnish" lang="fi" hreflang="fi" data-title="Japanin aika" data-language-autonym="Suomi" data-language-local-name="Finnish" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%80%E0%B8%A7%E0%B8%A5%E0%B8%B2%E0%B8%A1%E0%B8%B2%E0%B8%95%E0%B8%A3%E0%B8%90%E0%B8%B2%E0%B8%99%E0%B8%8D%E0%B8%B5%E0%B9%88%E0%B8%9B%E0%B8%B8%E0%B9%88%E0%B8%99" title="เวลามาตรฐานญี่ปุ่น – Thai" lang="th" hreflang="th" data-title="เวลามาตรฐานญี่ปุ่น" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Japonya_Standart_Saati" title="Japonya Standart Saati – Turkish" lang="tr" hreflang="tr" data-title="Japonya Standart Saati" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%AF%D0%BF%D0%BE%D0%BD%D1%81%D1%8C%D0%BA%D0%B8%D0%B9_%D1%81%D1%82%D0%B0%D0%BD%D0%B4%D0%B0%D1%80%D1%82%D0%BD%D0%B8%D0%B9_%D1%87%D0%B0%D1%81" title="Японський стандартний час – Ukrainian" lang="uk" hreflang="uk" data-title="Японський стандартний час" data-language-autonym="Українська" data-language-local-name="Ukrainian" 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%AC%D8%A7%D9%BE%D8%A7%D9%86_%D9%85%D8%B9%DB%8C%D8%A7%D8%B1%DB%8C_%D9%88%D9%82%D8%AA" title="جاپان معیاری وقت – Urdu" lang="ur" hreflang="ur" data-title="جاپان معیاری وقت" data-language-autonym="اردو" data-language-local-name="Urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Gi%E1%BB%9D_ti%C3%AAu_chu%E1%BA%A9n_Nh%E1%BA%ADt_B%E1%BA%A3n" title="Giờ tiêu chuẩn Nhật Bản – Vietnamese" lang="vi" hreflang="vi" data-title="Giờ tiêu chuẩn Nhật Bản" data-language-autonym="Tiếng Việt" data-language-local-name="Vietnamese" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E6%97%A5%E6%9C%AC%E6%A0%87%E5%87%86%E8%BE%B0%E5%85%89" title="日本标准辰光 – Wu" lang="wuu" hreflang="wuu" data-title="日本标准辰光" data-language-autonym="吴语" data-language-local-name="Wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E6%97%A5%E6%9C%AC%E6%A8%99%E6%BA%96%E6%99%82%E9%96%93" title="日本標準時間 – Cantonese" lang="yue" hreflang="yue" data-title="日本標準時間" data-language-autonym="粵語" data-language-local-name="Cantonese" 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.hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">"Japan Time" redirects here. For the TV series, see <a href="/wiki/Japan_Time_(TV_series)" title="Japan Time (TV series)">Japan Time (TV series)</a>.</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><style data-mw-deduplicate="TemplateStyles:r1046119364">.mw-parser-output .ib-time-zone{border-collapse:collapse;line-height:1.2em;width:23em}.mw-parser-output .ib-time-zone td,.mw-parser-output .ib-time-zone th{border-top:1px solid #a2a9b1;padding:0.4em 0.6em 0.4em 0.6em}.mw-parser-output .ib-time-zone .mergedtoprow .infobox-data,.mw-parser-output .ib-time-zone .mergedtoprow .infobox-label{border-top:1px solid #a2a9b1;padding:0.4em 0.6em 0.2em 0.6em}.mw-parser-output .ib-time-zone .infobox-subheader{background-color:#ccf;font-weight:bold}.mw-parser-output .ib-time-zone .infobox-header{background-color:#ddf}.mw-parser-output .ib-time-zone .infobox-label{background-color:#e6e6ff}</style><table class="infobox ib-time-zone vcard"><tbody><tr><th colspan="2" class="infobox-above">Japan Standard Time</th></tr><tr><td colspan="2" class="infobox-subheader"><a href="/wiki/Time_zone" title="Time zone">Time zone</a></td></tr><tr><th colspan="2" class="infobox-header">UTC offset</th></tr><tr><th scope="row" class="infobox-label">JST</th><td class="infobox-data"><a href="/wiki/UTC%2B09:00" title="UTC+09:00">UTC+09:00</a></td></tr><tr><th colspan="2" class="infobox-header">Current time</th></tr><tr><td colspan="2" class="infobox-full-data">19:02, 17 February 2025 <a class="mw-selflink selflink">JST</a> <span class="plainlinks" style="font-size:85%;">[<a class="external text" href="https://en.wikipedia.org/w/index.php?title=Japan_Standard_Time&amp;action=purge">refresh</a>]</span></td></tr><tr><th colspan="2" class="infobox-header">Observance of <a href="/wiki/Daylight_saving_time" title="Daylight saving time">DST</a></th></tr><tr><td colspan="2" class="infobox-full-data">DST is not observed in this time zone.</td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"><table class="infobox"><tbody><tr><th colspan="2" class="infobox-above" style="color: #202122;background-color:#b0c4de">Japan Standard Time</th></tr><tr style="display:none;"><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th colspan="2" class="infobox-header" style="color: #202122;background-color: #b0c4de;">Japanese name</th></tr><tr><th scope="row" class="infobox-label" style="font-weight:normal;"><a href="/wiki/Kanji" title="Kanji">Kanji</a></th><td class="infobox-data"><span title="Japanese-language text"><span lang="ja">日本標準時</span></span></td></tr><tr><th scope="row" class="infobox-label" style="font-weight:normal;"><a href="/wiki/Kana" title="Kana">Kana</a></th><td class="infobox-data"><span title="Japanese-language text"><span lang="ja">にほん ひょうじゅんじ<br />にっぽん ひょうじゅんじ</span></span></td></tr><tr><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"><table class="infobox-subbox mw-collapsible mw-collapsed" style="display:inline-table; text-align: left;"><tbody><tr><th colspan="2" class="infobox-above" style="font-size: 100%; text-align: left;color: #202122; background-color: #f9ffbc;">Transcriptions</th></tr><tr><th scope="row" class="infobox-label" style="font-weight:normal;"><a href="/wiki/Romanization_of_Japanese" title="Romanization of Japanese">Romanization</a></th><td class="infobox-data"><span title="Japanese-language romanization"><span style="font-style: normal" lang="ja-Latn">Nihon Hyōjunji<br />Nippon Hyōjunji</span></span></td></tr></tbody></table></td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></tr><tr style="display:none"><td colspan="2"> </td></tr></tbody></table> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Imperial_Ordinance_167_issued_on_December_27,_Meiji_28_(1895).png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Imperial_Ordinance_167_issued_on_December_27%2C_Meiji_28_%281895%29.png/170px-Imperial_Ordinance_167_issued_on_December_27%2C_Meiji_28_%281895%29.png" decoding="async" width="170" height="227" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Imperial_Ordinance_167_issued_on_December_27%2C_Meiji_28_%281895%29.png/255px-Imperial_Ordinance_167_issued_on_December_27%2C_Meiji_28_%281895%29.png 1.5x, //upload.wikimedia.org/wikipedia/commons/5/5f/Imperial_Ordinance_167_issued_on_December_27%2C_Meiji_28_%281895%29.png 2x" data-file-width="281" data-file-height="376" /></a><figcaption>Imperial Ordinance 167 issued on December 27, Meiji 28 (1895)</figcaption></figure> <p><b>Japan Standard Time</b><span style="font-weight: normal"> (<span title="Japanese-language text"><span lang="ja">日本標準時</span></span>, <span title="Hepburn transliteration"><i lang="ja-Latn">Nihon Hyōjunji</i></span>, <b>JST</b>)</span>, or <b>Japan Central Standard Time</b><span style="font-weight: normal"> (<span title="Japanese-language text"><span lang="ja">中央標準時</span></span>, <span title="Hepburn transliteration"><i lang="ja-Latn">Chūō Hyōjunji</i></span>, <b>JCST</b>)</span>, is the standard <a href="/wiki/Time_zone" title="Time zone">time zone</a> in <a href="/wiki/Japan" title="Japan">Japan</a>, 9 hours ahead of UTC (<a href="/wiki/UTC%2B09:00" title="UTC+09:00">UTC+09:00</a>).<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> Japan does not observe daylight saving time, though its introduction has been debated on several occasions. During <a href="/wiki/World_War_II" title="World War II">World War II</a>, the time zone was often referred to as <b>Tokyo Standard Time</b>. </p><p>Japan Standard Time is equivalent to <a href="/wiki/Time_in_South_Korea" title="Time in South Korea">Korean Standard Time</a>, <a href="/wiki/Time_in_North_Korea" title="Time in North Korea">Pyongyang Time</a> (<a href="/wiki/North_Korea" title="North Korea">North Korea</a>), <a href="/wiki/Time_in_Indonesia" title="Time in Indonesia">Eastern Indonesia Standard Time</a>, <a href="/wiki/Time_in_East_Timor" class="mw-redirect" title="Time in East Timor">East-Timorese Standard Time</a>, <a href="/wiki/Time_in_Palau" title="Time in Palau">Palau Time</a>, and <a href="/wiki/Yakutsk_Time" title="Yakutsk Time">Yakutsk Time</a> (<a href="/wiki/Russia" title="Russia">Russia</a>). </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Japan_Standard_Time&amp;action=edit&amp;section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Before the <a href="/wiki/Meiji_(era)" class="mw-redirect" title="Meiji (era)">Meiji</a> era (1868–1912), each local region had its own time zone in which noon was when the sun was exactly at its <a href="/wiki/Culmination" title="Culmination">culmination</a>. As modern transportation methods, such as trains, were adopted, this practice became a source of confusion. For example, there is a difference of about 5 degrees longitude between <a href="/wiki/Tokyo" title="Tokyo">Tokyo</a> and <a href="/wiki/Osaka" title="Osaka">Osaka</a> and because of this, a train that departed from Tokyo would arrive at Osaka 20 minutes behind the time in Tokyo. In 1886, Ordinance 51 was issued in response to this problem, which stated: </p> <style data-mw-deduplicate="TemplateStyles:r1244412712">.mw-parser-output .templatequote{overflow:hidden;margin:1em 0;padding:0 32px}.mw-parser-output .templatequotecite{line-height:1.5em;text-align:left;margin-top:0}@media(min-width:500px){.mw-parser-output .templatequotecite{padding-left:1.6em}}</style><blockquote class="templatequote"> <p>Ordinance 51 (on the precise calculation of time using the Prime Meridian) – July 13, 1886 </p> <ul><li>The <a href="/wiki/Prime_meridian" title="Prime meridian">prime meridian</a> passes through England's <a href="/wiki/Royal_Observatory,_Greenwich" title="Royal Observatory, Greenwich">Greenwich Observatory</a>.</li> <li>Longitudes are calculated using the prime meridian, counting 180 degrees either east or west. Positive degrees are east, negative degrees are west.</li> <li>On January 1, 1888, <a href="/wiki/135th_meridian_east" title="135th meridian east">135 degrees east longitude</a> will be set as the standard meridian for all of Japan, allowing precise times to be fixed.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></li></ul> </blockquote> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Akashi_Minicipal_Planetarium.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/24/Akashi_Minicipal_Planetarium.JPG/220px-Akashi_Minicipal_Planetarium.JPG" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/24/Akashi_Minicipal_Planetarium.JPG/330px-Akashi_Minicipal_Planetarium.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/24/Akashi_Minicipal_Planetarium.JPG/440px-Akashi_Minicipal_Planetarium.JPG 2x" data-file-width="1760" data-file-height="1320" /></a><figcaption><a href="/w/index.php?title=Akashi_Municipal_Planetarium&amp;action=edit&amp;redlink=1" class="new" title="Akashi Municipal Planetarium (page does not exist)">Akashi Municipal Planetarium</a><span class="noprint" style="font-size:85%; font-style: normal;">&#160;&#91;<a href="https://ja.wikipedia.org/wiki/%E6%98%8E%E7%9F%B3%E5%B8%82%E7%AB%8B%E5%A4%A9%E6%96%87%E7%A7%91%E5%AD%A6%E9%A4%A8" class="extiw" title="ja:明石市立天文科学館">ja</a>&#93;</span>, located exactly on 135°E longitude, and known as a symbol of Japan Standard Time</figcaption></figure> <p>According to this, the <a href="/wiki/Standard_time" title="Standard time">standard time</a><span style="font-weight: normal"> (<span title="Japanese-language text"><span lang="ja">標準時</span></span>, <span title="Hepburn transliteration"><i lang="ja-Latn">hyōjunji</i></span><span style="margin-left:.09em">)</span></span> was set 9 hours ahead of <a href="/wiki/Greenwich_Mean_Time" title="Greenwich Mean Time">GMT</a> (UTC had not been established yet). In the ordinance, the first clause mentions GMT, the second defines east longitude and west longitude and the third says the standard time zone would be in effect from 1888. The city of <a href="/wiki/Akashi,_Hy%C5%8Dgo" title="Akashi, Hyōgo">Akashi</a> in <a href="/wiki/Hy%C5%8Dgo_Prefecture" title="Hyōgo Prefecture">Hyōgo Prefecture</a> is located exactly on 135 degrees east longitude and subsequently became known as <i>Toki no machi</i> (Town of Time). </p><p>With the <a href="/wiki/Taiwan_under_Japanese_rule" title="Taiwan under Japanese rule">annexation of Taiwan</a> in 1895, Ordinance 167 (pictured on the right) was issued to rename the previous Standard Time to <i>Central Standard Time</i><span style="font-weight: normal"> (<span title="Japanese-language text"><span lang="ja">中央標準時</span></span>, <span title="Hepburn transliteration"><i lang="ja-Latn">Chūō Hyōjunji</i></span><span style="margin-left:.09em">)</span></span> and establish a new <i>Western Standard Time</i><span style="font-weight: normal"> (<span title="Japanese-language text"><span lang="ja">西部標準時</span></span>, <span title="Hepburn transliteration"><i lang="ja-Latn">Seibu Hyōjunji</i></span><span style="margin-left:.09em">)</span></span> at <a href="/wiki/120th_meridian_east" title="120th meridian east">120° longitude</a> as the time zone for the Japanese <a href="/wiki/Miyako_Islands" title="Miyako Islands">Miyako</a> and <a href="/wiki/Yaeyama_Islands" title="Yaeyama Islands">Yaeyama Islands</a>, as well as Taiwan and its <a href="/wiki/Penghu_Islands" class="mw-redirect" title="Penghu Islands">Penghu Islands</a>.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">&#91;</span>3<span class="cite-bracket">&#93;</span></a></sup> While <a href="/wiki/Korea" title="Korea">Korea</a> came <a href="/wiki/Korea_under_Japanese_rule" title="Korea under Japanese rule">under Japanese rule</a> in 1910, <a href="/wiki/Korea_Standard_Time" class="mw-redirect" title="Korea Standard Time">Korea Standard Time</a> of GMT+08:30 continued to be used until 1912, when it was changed to Central Standard Time. </p><p>Western Standard Time, which was used in <a href="/wiki/Taiwan" title="Taiwan">Taiwan</a> and some parts of <a href="/wiki/Okinawa_Prefecture" title="Okinawa Prefecture">Okinawa</a>, was abolished by Ordinance 529 in 1937 and replaced by Central Standard Time in those areas.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> Territories occupied by Japan during World War II, including <a href="/wiki/Singapore_Standard_Time" class="mw-redirect" title="Singapore Standard Time">Singapore</a> and <a href="/wiki/Malaysian_Standard_Time" class="mw-redirect" title="Malaysian Standard Time">Malaya</a>, adopted Japan Standard Time for the duration of their occupation, but reverted after <a href="/wiki/Japan%27s_surrender" class="mw-redirect" title="Japan&#39;s surrender">Japan's surrender</a>. </p><p>Between 1948 and 1951 <a href="/wiki/Occupied_Japan" class="mw-redirect" title="Occupied Japan">occupied Japan</a> observed <a href="/wiki/Daylight_saving_time" title="Daylight saving time">daylight saving time</a> (DST) from the first Saturday in May at 24:00 to the second Saturday in September at 24:00 (with the exception of 1949, when the spring forward transition was the first Saturday in April at 24:00).<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup> More recently there have been efforts to restore daylight saving time in Japan but these have not succeeded.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">&#91;</span>7<span class="cite-bracket">&#93;</span></a></sup> </p><p>In May 2013, former Tokyo governor <a href="/wiki/Naoki_Inose" title="Naoki Inose">Naoki Inose</a> proposed permanently moving the country's time zone ahead by 2 hours to better align global markets and make Japan's stock market to be the first to open in the world at any given time.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">&#91;</span>8<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Time_zones_of_the_Japanese_Empire">Time zones of the Japanese Empire</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Japan_Standard_Time&amp;action=edit&amp;section=2" title="Edit section: Time zones of the Japanese Empire"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The two-time-zone system was implemented in Japan between January 1896 and September 1937: </p> <table class="wikitable"> <tbody><tr> <th>Time offset</th> <th>Name</th> <th>Japanese</th> <th>Romanization</th> <th>Region </th></tr> <tr> <td>GMT+08:00</td> <td>Western Standard Time</td> <td><span title="Japanese-language text"><span lang="ja">西部標準時</span></span></td> <td><span title="Japanese-language romanization"><span style="font-style: normal" lang="ja-Latn">Seibu Hyōjunji</span></span></td> <td>Western Okinawa and Taiwan (see also <a href="/wiki/Time_in_Taiwan" title="Time in Taiwan">Time in Taiwan</a>) </td></tr> <tr> <td>GMT+09:00</td> <td>Central Standard Time</td> <td><span title="Japanese-language text"><span lang="ja">中央標準時</span></span></td> <td><span title="Japanese-language romanization"><span style="font-style: normal" lang="ja-Latn">Chūō Hyōjunji</span></span></td> <td>Japan mainland and Korea (see also <a href="/wiki/Korea_Standard_Time" class="mw-redirect" title="Korea Standard Time">Korea Standard Time</a>) </td></tr></tbody></table> <p>From October 1937, Central Standard Time was also used in western Okinawa and Taiwan. </p> <div class="mw-heading mw-heading2"><h2 id="IANA_time_zone_database">IANA time zone database</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Japan_Standard_Time&amp;action=edit&amp;section=3" title="Edit section: IANA time zone database"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <a href="/wiki/IANA_time_zone_database" class="mw-redirect" title="IANA time zone database">IANA time zone database</a> contains one zone for Japan in the file <a href="/wiki/Zone.tab" class="mw-redirect" title="Zone.tab">zone.tab</a>, named <b>Asia/Tokyo</b>. </p> <div class="mw-heading mw-heading2"><h2 id="Daylight_saving_time_in_Japan">Daylight saving time in Japan</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Japan_Standard_Time&amp;action=edit&amp;section=4" title="Edit section: Daylight saving time in Japan"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:TZdiff-Japan.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/10/TZdiff-Japan.png/220px-TZdiff-Japan.png" decoding="async" width="220" height="220" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/10/TZdiff-Japan.png/330px-TZdiff-Japan.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/10/TZdiff-Japan.png/440px-TZdiff-Japan.png 2x" data-file-width="2048" data-file-height="2048" /></a><figcaption>This map shows the difference between legal time and local mean time in Japan and its neighborhood. Eastern part of Hokkaido is over 30 minutes behind and western part of Ryukyu islands is over 30 minutes ahead of local solar time as a single standard time offset of UTC+09:00 is observed in whole country of Japan, even in its easternmost territory, <a href="/wiki/Minamitorishima" title="Minamitorishima">Minamitorishima</a> (153°59′E) and its westernmost territory, <a href="/wiki/Yonaguni" title="Yonaguni">Yonaguni</a> (122°56′E). It makes the sun rise before 04:00 at the summer solstice in much of the Hokkaido region and set shortly after 19:00 at the summer solstice in much of the eastern part of the country.</figcaption></figure> <p>From 1948 to 1952, Japan observed daylight saving time (DST) between May and September every year. The <a href="/wiki/United_States" title="United States">United States</a> imposed this policy as part of the <a href="/wiki/Occupation_of_Japan" title="Occupation of Japan">Allied occupation of Japan</a>. In 1952, three weeks before the occupation ended, the Japanese government, which had been granted increased powers, abolished daylight saving time, and the Allied occupation authorities did not interfere.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">&#91;</span>9<span class="cite-bracket">&#93;</span></a></sup> Since then, DST has never been officially implemented nationwide in Japan.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">&#91;</span>10<span class="cite-bracket">&#93;</span></a></sup> </p><p>Starting in the late 1990s, a movement to reinstate DST in Japan gained some popularity, aiming at saving energy and increasing recreational time. The <a href="/wiki/Hokkaido" title="Hokkaido">Hokkaido</a> region is particularly in favour of this movement because daylight starts as early as 03:30 (in standard time) there in summer due to its high latitude and its location near the eastern edge of the time zone, with much of the region's solar time actually closer to UTC+10:00. Because of this, the sun sets shortly after 19:00 in much of the eastern part of the country (in Tokyo, the latest sunset of the entire year is 19:01, from 26 June to 1 July, despite being at 35°41'N latitude). Since 2000, a few local governments and commerce departments have promoted unmandated hour-earlier work schedule experiments during the summer without officially resetting clocks.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p><p>The Council on Economic and Fiscal Policy of the <a href="/wiki/Cabinet_Office_(Japan)" title="Cabinet Office (Japan)">Cabinet Office</a> is expected<sup class="noprint Inline-Template" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Manual_of_Style/Dates_and_numbers#Chronological_items" title="Wikipedia:Manual of Style/Dates and numbers"><span title="The time period mentioned near this tag is ambiguous. (January 2018)">when?</span></a></i>&#93;</sup><sup>(written October 2013)</sup> to propose that the Japanese government begin studying DST in an attempt to help combat <a href="/wiki/Global_warming" class="mw-redirect" title="Global warming">global warming</a>. <a href="/wiki/Prime_Minister_of_Japan" title="Prime Minister of Japan">Japanese former Prime Minister</a> <a href="/wiki/Shinz%C5%8D_Abe" class="mw-redirect" title="Shinzō Abe">Shinzō Abe</a> made a significant effort to introduce daylight saving time, but was ultimately unsuccessful.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">&#91;</span>12<span class="cite-bracket">&#93;</span></a></sup> However, it is not clear that DST would <a href="/wiki/Daylight_saving_time#Energy_conservation" title="Daylight saving time">conserve energy</a> in Japan. A 2007 simulation estimated that introducing DST to Japan would increase energy use in <a href="/wiki/Osaka" title="Osaka">Osaka</a> residences by 0.13%, with a 0.02% saving due to lighting more than outweighed by a 0.15% increase due to cooling costs; the simulation did not examine non-residential buildings.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">&#91;</span>13<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Possibility_of_adjusting_the_time_zone">Possibility of adjusting the time zone</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Japan_Standard_Time&amp;action=edit&amp;section=5" title="Edit section: Possibility of adjusting the time zone"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>On May 22, 2013, the <a href="/wiki/Governor_of_Tokyo" title="Governor of Tokyo">Governor of Tokyo</a> (then) <a href="/wiki/Naoki_Inose" title="Naoki Inose">Naoki Inose</a> proposed a two-hour advance (<a href="/wiki/UTC%2B11:00" title="UTC+11:00">UTC+11</a>) Japan Standard Time at an industry competitiveness conference. Its purpose is to enhance the influence of the <a href="/wiki/Japanese_financial_system" title="Japanese financial system">Japanese financial</a> market by starting early in the <a href="/wiki/Tokyo_Financial_Exchange" title="Tokyo Financial Exchange">Tokyo financial market</a>. The Japanese government has decided to consider this proposal.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">&#91;</span>14<span class="cite-bracket">&#93;</span></a></sup> However, there has been no specific discussion of this proposal for more than ten years. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Japan_Standard_Time&amp;action=edit&amp;section=6" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Japanese_calendar" title="Japanese calendar">Japanese calendar</a></li> <li><a href="/wiki/Japanese_clock" title="Japanese clock">Japanese clock</a></li> <li><a href="/wiki/JJY" title="JJY">JJY</a></li> <li><a href="/wiki/UTC%2B09:00" title="UTC+09:00">UTC+09:00</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Japan_Standard_Time&amp;action=edit&amp;section=7" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFTime_and_Date2020" class="citation web cs1">Time and Date (13 September 2020). <a rel="nofollow" class="external text" href="https://www.timeanddate.com/worldclock/japan">"Current Local Time in Japan"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">12 September</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Current+Local+Time+in+Japan&amp;rft.date=2020-09-13&amp;rft.au=Time+and+Date&amp;rft_id=https%3A%2F%2Fwww.timeanddate.com%2Fworldclock%2Fjapan&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJapan+Standard+Time" class="Z3988"></span> There is a difference between GMT and UTC which can be as much as 0.9 seconds. Japan now legally uses an atomic clock synchronized to UTC.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"> <div lang="ja">明治十九年勅令第五十一号(本初子午線経度計算方及標準時ノ件)<br /> <p>(明治十九年七月十三日勅令第五十一号) </p> <ul><li>英国グリニツチ天文台子午儀ノ中心ヲ経過スル子午線ヲ以テ経度ノ本初子午線トス</li> <li>経度ハ本初子午線ヨリ起算シ東西各百八十度ニ至リ東経ヲ正トシ西経ヲ負トス</li> <li>明治二十一年一月一日ヨリ東経百三十五度ノ子午線ノ時ヲ以テ本邦一般ノ標準時ト定ム</li></ul></div></span></li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><a class="external text" href="https://ja.wikisource.org/wiki/%E6%A8%99%E6%BA%96%E6%99%82%E3%83%8B%E9%97%9C%E3%82%B9%E3%83%AB%E4%BB%B6_(%E5%85%AC%E5%B8%83%E6%99%82)"><span lang="ja">明治二十八年勅令第百六十七號(標準時ニ關スル件)</span> - Wikisource</a></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><a class="external text" href="https://ja.wikisource.org/wiki/%E6%98%8E%E6%B2%BB%E4%BA%8C%E5%8D%81%E5%85%AB%E5%B9%B4%E5%8B%85%E4%BB%A4%E7%AC%AC%E7%99%BE%E5%85%AD%E5%8D%81%E4%B8%83%E8%99%9F%E6%A8%99%E6%BA%96%E6%99%82%E3%83%8B%E9%97%9C%E3%82%B9%E3%83%AB%E4%BB%B6%E4%B8%AD%E6%94%B9%E6%AD%A3%E3%83%8E%E4%BB%B6"><span lang="ja">昭和十二年勅令第五百二十九號(明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件)</span> - Wikisource</a></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><a class="external text" href="https://ja.wikisource.org/wiki/%E6%A8%99%E6%BA%96%E6%99%82%E3%83%8B%E9%97%9C%E3%82%B9%E3%83%AB%E4%BB%B6_(%E5%85%AC%E5%B8%83%E6%99%82)"><span lang="ja">昭和二十三年法律第二十九号(夏時刻法)</span> - Wikisource</a></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20070409115501/http://www.eccj.or.jp/SummerTime/conf/index_e.html">"Outline of the report on the National Conference on the Global Environment and Summer Time"</a>. The Energy Conservation Center, Japan. September 1998. Archived from <a rel="nofollow" class="external text" href="http://www.eccj.or.jp/SummerTime/conf/index_e.html">the original</a> on 2007-04-09<span class="reference-accessdate">. Retrieved <span class="nowrap">2007-04-14</span></span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Outline+of+the+report+on+the+National+Conference+on+the+Global+Environment+and+Summer+Time&amp;rft.pub=The+Energy+Conservation+Center%2C+Japan&amp;rft.date=1998-09&amp;rft_id=http%3A%2F%2Fwww.eccj.or.jp%2FSummerTime%2Fconf%2Findex_e.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJapan+Standard+Time" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text">Hongo, Jun, "<a rel="nofollow" class="external text" href="http://search.japantimes.co.jp/cgi-bin/nn20110628i1.html">Daylight saving: Is it finally time to convert?</a>", <i><a href="/wiki/Japan_Times" class="mw-redirect" title="Japan Times">Japan Times</a></i>, 28 June 2011, p. 3.</span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFPreston_Phro2013" class="citation news cs1">Preston Phro (24 May 2013). <a rel="nofollow" class="external text" href="https://japantoday.com/category/national/govt-considers-setting-clock-ahead-by-two-hours">"Gov't considers setting clock ahead by two hours"</a>. <i>Japan Today</i><span class="reference-accessdate">. Retrieved <span class="nowrap">24 June</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Japan+Today&amp;rft.atitle=Gov%27t+considers+setting+clock+ahead+by+two+hours&amp;rft.date=2013-05-24&amp;rft.au=Preston+Phro&amp;rft_id=https%3A%2F%2Fjapantoday.com%2Fcategory%2Fnational%2Fgovt-considers-setting-clock-ahead-by-two-hours&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJapan+Standard+Time" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSchreiber2002" class="citation news cs1">Schreiber, Mark (28 April 2002). <a rel="nofollow" class="external text" href="https://www.japantimes.co.jp/news/2002/04/28/national/history/japans-long-awaited-spring/#.W-RKltJvb3g">"Japan's 'long-awaited spring'<span class="cs1-kern-right"></span>"</a>. <i>Japan Times</i>. Tokyo<span class="reference-accessdate">. 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Archived from <a rel="nofollow" class="external text" href="http://www.yomiuri.co.jp/dy/national/20070602TDY01005.htm">the original</a> on 2007-06-06<span class="reference-accessdate">. Retrieved <span class="nowrap">2007-06-02</span></span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Yomiuri+Shimbun&amp;rft.atitle=Panel+to+call+for+daylight+saving+time&amp;rft.date=2007-06-02&amp;rft_id=http%3A%2F%2Fwww.yomiuri.co.jp%2Fdy%2Fnational%2F20070602TDY01005.htm&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJapan+Standard+Time" class="Z3988"></span></span> </li> <li id="cite_note-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-13">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFYoshiyuki_ShimodaTakahiro_AsahiaAyako_TaniguchiaMinoru_Mizuno2007" class="citation journal cs1">Yoshiyuki Shimoda; Takahiro Asahia; Ayako Taniguchia; Minoru Mizuno (2007). "Evaluation of city-scale impact of residential energy conservation measures using the detailed end-use simulation model". <i>Energy</i>. <b>32</b> (9): <span class="nowrap">1617–</span>1633. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2007Ene....32.1617S">2007Ene....32.1617S</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2Fj.energy.2007.01.007">10.1016/j.energy.2007.01.007</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Energy&amp;rft.atitle=Evaluation+of+city-scale+impact+of+residential+energy+conservation+measures+using+the+detailed+end-use+simulation+model&amp;rft.volume=32&amp;rft.issue=9&amp;rft.pages=%3Cspan+class%3D%22nowrap%22%3E1617-%3C%2Fspan%3E1633&amp;rft.date=2007&amp;rft_id=info%3Adoi%2F10.1016%2Fj.energy.2007.01.007&amp;rft_id=info%3Abibcode%2F2007Ene....32.1617S&amp;rft.au=Yoshiyuki+Shimoda&amp;rft.au=Takahiro+Asahia&amp;rft.au=Ayako+Taniguchia&amp;rft.au=Minoru+Mizuno&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJapan+Standard+Time" class="Z3988"></span></span> </li> <li id="cite_note-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-14">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation news cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="http://www.asahi.com/business/update/0522/TKY201305220005.html">"日本の標準時「2時間早く」 都知事が提案、政府検討へ"</a>. <i>朝日新聞</i> (in Japanese). 2013-05-22. 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Retrieved <span class="nowrap">2019-12-19</span></span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=%E6%9C%9D%E6%97%A5%E6%96%B0%E8%81%9E&amp;rft.atitle=%E6%97%A5%E6%9C%AC%E3%81%AE%E6%A8%99%E6%BA%96%E6%99%82%E3%80%8C2%E6%99%82%E9%96%93%E6%97%A9%E3%81%8F%E3%80%8D+%E9%83%BD%E7%9F%A5%E4%BA%8B%E3%81%8C%E6%8F%90%E6%A1%88%E3%80%81%E6%94%BF%E5%BA%9C%E6%A4%9C%E8%A8%8E%E3%81%B8&amp;rft.date=2013-05-22&amp;rft_id=https%3A%2F%2Fweb.archive.org%2Fweb%2F20130522050847%2Fhttp%3A%2F%2Fwww.asahi.com%2Fbusiness%2Fupdate%2F0522%2FTKY201305220005.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJapan+Standard+Time" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Japan_Standard_Time&amp;action=edit&amp;section=8" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Wikisource-logo.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png" decoding="async" width="12" height="13" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/18px-Wikisource-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/24px-Wikisource-logo.svg.png 2x" data-file-width="410" data-file-height="430" /></a></span>&#160;Japanese <a href="/wiki/Wikisource" title="Wikisource">Wikisource</a> has original text related to this article: <a href="https://en.wikisource.org/wiki/ja:%E6%9C%AC%E5%88%9D%E5%AD%90%E5%8D%88%E7%B7%9A%E7%B6%93%E5%BA%A6%E8%A8%88%E7%AE%97%E6%96%B9%E5%8F%8A%E6%A8%99%E6%BA%96%E6%99%82%E3%83%8E%E4%BB%B6" class="extiw" title="s:ja:本初子午線經度計算方及標準時ノ件">明治十九年勅令第五十一号</a></li> <li><a rel="nofollow" class="external text" href="https://skdesu.com/en/time-in-japan-infos/">What time is it in Japan? 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states</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Time_in_Afghanistan" title="Time in Afghanistan">Afghanistan</a></li> <li><a href="/wiki/Time_in_Armenia" class="mw-redirect" title="Time in Armenia">Armenia</a></li> <li><a href="/wiki/Time_in_Azerbaijan" class="mw-redirect" title="Time in Azerbaijan">Azerbaijan</a></li> <li><a href="/wiki/Time_in_Bahrain" title="Time in Bahrain">Bahrain</a></li> <li><a href="/wiki/Time_in_Bangladesh" class="mw-redirect" title="Time in Bangladesh">Bangladesh</a></li> <li><a href="/wiki/Time_in_Bhutan" class="mw-redirect" title="Time in Bhutan">Bhutan</a></li> <li><a href="/wiki/Time_in_Brunei" title="Time in Brunei">Brunei</a></li> <li><a href="/wiki/Time_in_Cambodia" title="Time in Cambodia">Cambodia</a></li> <li><a href="/wiki/Time_in_China" title="Time in China">China</a></li> <li><a href="/wiki/Time_in_Cyprus" title="Time in Cyprus">Cyprus</a></li> <li><a href="/wiki/Time_in_Egypt" class="mw-redirect" title="Time in Egypt">Egypt</a></li> <li><a href="/wiki/Time_in_Georgia_(country)" class="mw-redirect" title="Time in Georgia (country)">Georgia</a></li> <li><a href="/wiki/Time_in_India" title="Time in India">India</a></li> <li><a href="/wiki/Time_in_Indonesia" title="Time in Indonesia">Indonesia</a></li> <li><a href="/wiki/Time_in_Iran" class="mw-redirect" title="Time in Iran">Iran</a></li> <li><a href="/wiki/Time_in_Iraq" title="Time in Iraq">Iraq</a></li> <li><a href="/wiki/Time_in_Israel" class="mw-redirect" title="Time in Israel">Israel</a></li> <li><a href="/wiki/Time_in_Japan" class="mw-redirect" title="Time in Japan">Japan</a></li> <li><a href="/wiki/Time_in_Jordan" title="Time in Jordan">Jordan</a></li> <li><a href="/wiki/Time_in_Kazakhstan" title="Time in Kazakhstan">Kazakhstan</a></li> <li><a href="/wiki/Time_in_North_Korea" title="Time in North Korea">North Korea</a></li> <li><a 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Pakistan">Pakistan</a></li> <li><a href="/wiki/Time_in_the_Philippines" class="mw-redirect" title="Time in the Philippines">Philippines</a></li> <li><a href="/wiki/Time_in_Qatar" title="Time in Qatar">Qatar</a></li> <li><a href="/wiki/Time_in_Russia" title="Time in Russia">Russia</a></li> <li><a href="/wiki/Time_in_Saudi_Arabia" class="mw-redirect" title="Time in Saudi Arabia">Saudi Arabia</a></li> <li><a href="/wiki/Time_in_Singapore" class="mw-redirect" title="Time in Singapore">Singapore</a></li> <li><a href="/wiki/Time_in_Sri_Lanka" title="Time in Sri Lanka">Sri Lanka</a></li> <li><a href="/wiki/Time_in_Syria" title="Time in Syria">Syria</a></li> <li><a href="/wiki/Time_in_Tajikistan" title="Time in Tajikistan">Tajikistan</a></li> <li><a href="/wiki/Time_in_Thailand" title="Time in Thailand">Thailand</a></li> <li><a href="/wiki/Time_in_Timor-Leste" title="Time in Timor-Leste">Timor-Leste (East Timor)</a></li> <li><a href="/wiki/Time_in_Turkey" title="Time in Turkey">Turkey</a></li> 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