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Available in 118 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-118" aria-hidden="true" > 118 languages </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-smn mw-list-item"><a href="https://smn.wikipedia.org/wiki/Mooduul:Fr:Date" title="Mooduul:Fr:Date – Inari Sami" lang="smn" hreflang="smn" data-title="Mooduul:Fr:Date" data-language-autonym="Anarâškielâ" data-language-local-name="Inari Sami" class="interlanguage-link-target">Anarâškielâ</a></li><li class="interlanguage-link interwiki-anp mw-list-item"><a href="https://anp.wikipedia.org/wiki/%E0%A4%AE%E0%A5%8B%E0%A4%A1%E0%A5%8D%E0%A4%AF%E0%A5%82%E0%A4%B2:Date" title="मोड्यूल:Date – Angika" lang="anp" hreflang="anp" data-title="मोड्यूल:Date" data-language-autonym="अंगिका" data-language-local-name="Angika" class="interlanguage-link-target">अंगिका</a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%88%D8%AD%D8%AF%D8%A9:Date" title="وحدة:Date – Arabic" lang="ar" hreflang="ar" data-title="وحدة:Date" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target">العربية</a></li><li class="interlanguage-link interwiki-frp mw-list-item"><a href="https://frp.wikipedia.org/wiki/Module:D%C3%A2ta" title="Module:Dâta – Arpitan" lang="frp" hreflang="frp" data-title="Module:Dâta" data-language-autonym="Arpetan" data-language-local-name="Arpitan" class="interlanguage-link-target">Arpetan</a></li><li class="interlanguage-link interwiki-as mw-list-item"><a href="https://as.wikipedia.org/wiki/Module:Date" title="Module:Date – Assamese" lang="as" hreflang="as" data-title="Module:Date" data-language-autonym="অসমীয়া" data-language-local-name="Assamese" class="interlanguage-link-target">অসমীয়া</a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Modul:Date" title="Modul:Date – Azerbaijani" lang="az" hreflang="az" data-title="Modul:Date" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target">Azərbaycanca</a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D9%85%D8%A7%DA%98%D9%88%D9%84:Date" title="ماژول:Date – South Azerbaijani" lang="azb" hreflang="azb" data-title="ماژول:Date" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target">تۆرکجه</a></li><li class="interlanguage-link interwiki-ban mw-list-item"><a href="https://ban.wikipedia.org/wiki/Modul:Date" title="Modul:Date – Balinese" lang="ban" hreflang="ban" data-title="Modul:Date" data-language-autonym="Basa Bali" data-language-local-name="Balinese" class="interlanguage-link-target">Basa Bali</a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%AE%E0%A6%A1%E0%A6%BF%E0%A6%89%E0%A6%B2:%E0%A6%A4%E0%A6%BE%E0%A6%B0%E0%A6%BF%E0%A6%96" title="মডিউল:তারিখ – Bangla" lang="bn" hreflang="bn" data-title="মডিউল:তারিখ" data-language-autonym="বাংলা" data-language-local-name="Bangla" class="interlanguage-link-target">বাংলা</a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/%E6%A8%A1%E7%B5%84:Date" title="模組:Date – Minnan" lang="nan" hreflang="nan" data-title="模組:Date" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="Minnan" class="interlanguage-link-target">閩南語 / Bân-lâm-gú</a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9C%D0%BE%D0%B4%D1%83%D0%BB%D1%8C:%D0%94%D0%B0%D1%82%D0%B0" title="Модуль:Дата – Belarusian" lang="be" hreflang="be" data-title="Модуль:Дата" data-language-autonym="Беларуская" data-language-local-name="Belarusian" class="interlanguage-link-target">Беларуская</a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%9C%D0%BE%D0%B4%D1%83%D0%BB%D1%8C:%D0%94%D0%B0%D1%82%D0%B0" title="Модуль:Дата – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Модуль:Дата" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target">Беларуская (тарашкевіца)</a></li><li class="interlanguage-link interwiki-bh mw-list-item"><a href="https://bh.wikipedia.org/wiki/Module:Date" title="Module:Date – Bhojpuri" lang="bh" hreflang="bh" data-title="Module:Date" data-language-autonym="भोजपुरी" data-language-local-name="Bhojpuri" class="interlanguage-link-target">भोजपुरी</a></li><li class="interlanguage-link interwiki-bcl mw-list-item"><a href="https://bcl.wikipedia.org/wiki/Module:Date" title="Module:Date – Central Bikol" lang="bcl" hreflang="bcl" data-title="Module:Date" data-language-autonym="Bikol Central" data-language-local-name="Central Bikol" class="interlanguage-link-target">Bikol Central</a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9C%D0%BE%D0%B4%D1%83%D0%BB:Date" title="Модул:Date – Bulgarian" lang="bg" hreflang="bg" data-title="Модул:Date" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target">Български</a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Modul:Date" title="Modul:Date – Bosnian" lang="bs" hreflang="bs" data-title="Modul:Date" data-language-autonym="Bosanski" data-language-local-name="Bosnian" class="interlanguage-link-target">Bosanski</a></li><li class="interlanguage-link interwiki-bxr mw-list-item"><a href="https://bxr.wikipedia.org/wiki/%D0%9C%D0%BE%D0%B4%D1%83%D0%BB%D1%8C:Date" title="Модуль:Date – Russia Buriat" lang="bxr" hreflang="bxr" data-title="Модуль:Date" data-language-autonym="Буряад" data-language-local-name="Russia Buriat" class="interlanguage-link-target">Буряад</a></li><li class="interlanguage-link interwiki-ceb mw-list-item"><a href="https://ceb.wikipedia.org/wiki/Module:Date" title="Module:Date – Cebuano" lang="ceb" hreflang="ceb" data-title="Module:Date" data-language-autonym="Cebuano" data-language-local-name="Cebuano" class="interlanguage-link-target">Cebuano</a></li><li class="interlanguage-link interwiki-co mw-list-item"><a href="https://co.wikipedia.org/wiki/Modulo:Date" title="Modulo:Date – Corsican" lang="co" hreflang="co" data-title="Modulo:Date" data-language-autonym="Corsu" data-language-local-name="Corsican" class="interlanguage-link-target">Corsu</a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Modiwl:Date" title="Modiwl:Date – Welsh" lang="cy" hreflang="cy" data-title="Modiwl:Date" data-language-autonym="Cymraeg" data-language-local-name="Welsh" class="interlanguage-link-target">Cymraeg</a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Modul:Date" title="Modul:Date – Danish" lang="da" hreflang="da" data-title="Modul:Date" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target">Dansk</a></li><li class="interlanguage-link interwiki-ary mw-list-item"><a href="https://ary.wikipedia.org/wiki/%D9%85%D9%88%D8%AF%D9%88%D9%84:Date" title="مودول:Date – Moroccan Arabic" lang="ary" hreflang="ary" data-title="مودول:Date" data-language-autonym="الدارجة" data-language-local-name="Moroccan Arabic" class="interlanguage-link-target">الدارجة</a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Moodul:Date" title="Moodul:Date – Estonian" lang="et" hreflang="et" data-title="Moodul:Date" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target">Eesti</a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/Module:Date" title="Module:Date – Greek" lang="el" hreflang="el" data-title="Module:Date" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target">Ελληνικά</a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Module:Date" title="Module:Date – English" lang="en" hreflang="en" data-title="Module:Date" data-language-autonym="English" data-language-local-name="English" class="interlanguage-link-target">English</a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/M%C3%B3dulo:Date" title="Módulo:Date – Spanish" lang="es" hreflang="es" data-title="Módulo:Date" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target">Español</a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Modulo:Date" title="Modulo:Date – Esperanto" lang="eo" hreflang="eo" data-title="Modulo:Date" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target">Esperanto</a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%BE%D9%88%D8%AF%D9%85%D8%A7%D9%86:Date" title="پودمان:Date – Persian" lang="fa" hreflang="fa" data-title="پودمان:Date" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target">فارسی</a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Module:Date" title="Module:Date – French" lang="fr" hreflang="fr" data-title="Module:Date" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target">Français</a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Module:Date" title="Module:Date – Irish" lang="ga" hreflang="ga" data-title="Module:Date" data-language-autonym="Gaeilge" data-language-local-name="Irish" class="interlanguage-link-target">Gaeilge</a></li><li class="interlanguage-link interwiki-gu mw-list-item"><a href="https://gu.wikipedia.org/wiki/%E0%AA%B5%E0%AA%BF%E0%AA%AD%E0%AA%BE%E0%AA%97:Date" title="વિભાગ:Date – Gujarati" lang="gu" hreflang="gu" data-title="વિભાગ:Date" data-language-autonym="ગુજરાતી" data-language-local-name="Gujarati" class="interlanguage-link-target">ગુજરાતી</a></li><li class="interlanguage-link interwiki-gom mw-list-item"><a href="https://gom.wikipedia.org/wiki/%E0%A4%8F%E0%A4%95%E0%A4%95:Date" title="एकक:Date – Goan Konkani" lang="gom" hreflang="gom" data-title="एकक:Date" data-language-autonym="गोंयची कोंकणी / Gõychi Konknni" data-language-local-name="Goan Konkani" class="interlanguage-link-target">गोंयची कोंकणी / Gõychi Konknni</a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%AA%A8%EB%93%88:Date" title="모듈:Date – Korean" lang="ko" hreflang="ko" data-title="모듈:Date" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target">한국어</a></li><li class="interlanguage-link interwiki-ha mw-list-item"><a href="https://ha.wikipedia.org/wiki/Module:Date" title="Module:Date – Hausa" lang="ha" hreflang="ha" data-title="Module:Date" data-language-autonym="Hausa" data-language-local-name="Hausa" class="interlanguage-link-target">Hausa</a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%84%D5%B8%D5%A4%D5%B8%D6%82%D5%AC:Date" title="Մոդուլ:Date – Armenian" lang="hy" hreflang="hy" data-title="Մոդուլ:Date" data-language-autonym="Հայերեն" data-language-local-name="Armenian" class="interlanguage-link-target">Հայերեն</a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AE%E0%A5%89%E0%A4%A1%E0%A5%8D%E0%A4%AF%E0%A5%82%E0%A4%B2:Date" title="मॉड्यूल:Date – Hindi" lang="hi" hreflang="hi" data-title="मॉड्यूल:Date" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target">हिन्दी</a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Modul:Date" title="Modul:Date – Croatian" lang="hr" hreflang="hr" data-title="Modul:Date" data-language-autonym="Hrvatski" data-language-local-name="Croatian" class="interlanguage-link-target">Hrvatski</a></li><li class="interlanguage-link interwiki-gor mw-list-item"><a href="https://gor.wikipedia.org/wiki/Modul:Date" title="Modul:Date – Gorontalo" lang="gor" hreflang="gor" data-title="Modul:Date" data-language-autonym="Bahasa Hulontalo" data-language-local-name="Gorontalo" class="interlanguage-link-target">Bahasa Hulontalo</a></li><li class="interlanguage-link interwiki-ilo mw-list-item"><a href="https://ilo.wikipedia.org/wiki/Modulo:Date" title="Modulo:Date – Iloko" lang="ilo" hreflang="ilo" data-title="Modulo:Date" data-language-autonym="Ilokano" data-language-local-name="Iloko" class="interlanguage-link-target">Ilokano</a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Modul:Date" title="Modul:Date – Indonesian" lang="id" hreflang="id" data-title="Modul:Date" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target">Bahasa Indonesia</a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Module:Date" title="Module:Date – Icelandic" lang="is" hreflang="is" data-title="Module:Date" data-language-autonym="Íslenska" data-language-local-name="Icelandic" class="interlanguage-link-target">Íslenska</a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%99%D7%97%D7%99%D7%93%D7%94:%D7%AA%D7%90%D7%A8%D7%99%D7%9A" title="יחידה:תאריך – Hebrew" lang="he" hreflang="he" data-title="יחידה:תאריך" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target">עברית</a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Modhul:Date" title="Modhul:Date – Javanese" lang="jv" hreflang="jv" data-title="Modhul:Date" data-language-autonym="Jawa" data-language-local-name="Javanese" class="interlanguage-link-target">Jawa</a></li><li class="interlanguage-link interwiki-kbp mw-list-item"><a href="https://kbp.wikipedia.org/wiki/Module:Date" title="Module:Date – Kabiye" lang="kbp" hreflang="kbp" data-title="Module:Date" data-language-autonym="Kabɩyɛ" data-language-local-name="Kabiye" class="interlanguage-link-target">Kabɩyɛ</a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%AE%E0%B2%BE%E0%B2%A1%E0%B3%8D%E0%B2%AF%E0%B3%82%E0%B2%B2%E0%B3%8D:Date" title="ಮಾಡ್ಯೂಲ್:Date – Kannada" lang="kn" hreflang="kn" data-title="ಮಾಡ್ಯೂಲ್:Date" data-language-autonym="ಕನ್ನಡ" data-language-local-name="Kannada" class="interlanguage-link-target">ಕನ್ನಡ</a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%9B%E1%83%9D%E1%83%93%E1%83%A3%E1%83%9A%E1%83%98:Date" title="მოდული:Date – Georgian" lang="ka" hreflang="ka" data-title="მოდული:Date" data-language-autonym="ქართული" data-language-local-name="Georgian" class="interlanguage-link-target">ქართული</a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/Module:Date" title="Module:Date – Kazakh" lang="kk" hreflang="kk" data-title="Module:Date" data-language-autonym="Қазақша" data-language-local-name="Kazakh" class="interlanguage-link-target">Қазақша</a></li><li class="interlanguage-link interwiki-rw mw-list-item"><a href="https://rw.wikipedia.org/wiki/Module:Date" title="Module:Date – Kinyarwanda" lang="rw" hreflang="rw" data-title="Module:Date" data-language-autonym="Ikinyarwanda" data-language-local-name="Kinyarwanda" class="interlanguage-link-target">Ikinyarwanda</a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Module:Date" title="Module:Date – Haitian Creole" lang="ht" hreflang="ht" data-title="Module:Date" data-language-autonym="Kreyòl ayisyen" data-language-local-name="Haitian Creole" class="interlanguage-link-target">Kreyòl ayisyen</a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Modul:Dem" title="Modul:Dem – Kurdish" lang="ku" hreflang="ku" data-title="Modul:Dem" data-language-autonym="Kurdî" data-language-local-name="Kurdish" class="interlanguage-link-target">Kurdî</a></li><li class="interlanguage-link interwiki-lo mw-list-item"><a href="https://lo.wikipedia.org/wiki/Module:Date" title="Module:Date – Lao" lang="lo" hreflang="lo" data-title="Module:Date" data-language-autonym="ລາວ" data-language-local-name="Lao" class="interlanguage-link-target">ລາວ</a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Modulis:Datums" title="Modulis:Datums – Latvian" lang="lv" hreflang="lv" data-title="Modulis:Datums" data-language-autonym="Latviešu" data-language-local-name="Latvian" class="interlanguage-link-target">Latviešu</a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Modul:Date" title="Modul:Date – Luxembourgish" lang="lb" hreflang="lb" data-title="Modul:Date" data-language-autonym="Lëtzebuergesch" data-language-local-name="Luxembourgish" class="interlanguage-link-target">Lëtzebuergesch</a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Module:Date" title="Module:Date – Lithuanian" lang="lt" hreflang="lt" data-title="Module:Date" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target">Lietuvių</a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Modul:Date" title="Modul:Date – Hungarian" lang="hu" hreflang="hu" data-title="Modul:Date" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target">Magyar</a></li><li class="interlanguage-link interwiki-mai mw-list-item"><a href="https://mai.wikipedia.org/wiki/%E0%A4%AE%E0%A5%8B%E0%A4%A1%E0%A5%8D%E0%A4%AF%E0%A5%81%E0%A4%B2:Date" title="मोड्युल:Date – Maithili" lang="mai" hreflang="mai" data-title="मोड्युल:Date" data-language-autonym="मैथिली" data-language-local-name="Maithili" class="interlanguage-link-target">मैथिली</a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9C%D0%BE%D0%B4%D1%83%D0%BB:Date" title="Модул:Date – Macedonian" lang="mk" hreflang="mk" data-title="Модул:Date" data-language-autonym="Македонски" data-language-local-name="Macedonian" class="interlanguage-link-target">Македонски</a></li><li class="interlanguage-link interwiki-mg mw-list-item"><a href="https://mg.wikipedia.org/wiki/Module:Date" title="Module:Date – Malagasy" lang="mg" hreflang="mg" data-title="Module:Date" data-language-autonym="Malagasy" data-language-local-name="Malagasy" class="interlanguage-link-target">Malagasy</a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%98%E0%B4%9F%E0%B4%95%E0%B4%82:Date" title="ഘടകം:Date – Malayalam" lang="ml" hreflang="ml" data-title="ഘടകം:Date" data-language-autonym="മലയാളം" data-language-local-name="Malayalam" class="interlanguage-link-target">മലയാളം</a></li><li class="interlanguage-link interwiki-mi mw-list-item"><a href="https://mi.wikipedia.org/wiki/Module:Date" title="Module:Date – Māori" lang="mi" hreflang="mi" data-title="Module:Date" data-language-autonym="Māori" data-language-local-name="Māori" class="interlanguage-link-target">Māori</a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%B5%E0%A4%BF%E0%A4%AD%E0%A4%BE%E0%A4%97:Date" title="विभाग:Date – Marathi" lang="mr" hreflang="mr" data-title="विभाग:Date" data-language-autonym="मराठी" data-language-local-name="Marathi" class="interlanguage-link-target">मराठी</a></li><li class="interlanguage-link interwiki-xmf mw-list-item"><a href="https://xmf.wikipedia.org/wiki/%E1%83%9B%E1%83%9D%E1%83%93%E1%83%A3%E1%83%9A%E1%83%98:Date" title="მოდული:Date – Mingrelian" lang="xmf" hreflang="xmf" data-title="მოდული:Date" data-language-autonym="მარგალური" data-language-local-name="Mingrelian" class="interlanguage-link-target">მარგალური</a></li><li class="interlanguage-link interwiki-mnw mw-list-item"><a href="https://mnw.wikipedia.org/wiki/%E1%80%99%E1%80%9D%E1%80%BA%E1%80%82%E1%80%BB%E1%80%B0:Date" title="မဝ်ဂျူ:Date – Mon" lang="mnw" hreflang="mnw" data-title="မဝ်ဂျူ:Date" data-language-autonym="ဘာသာမန်" data-language-local-name="Mon" class="interlanguage-link-target">ဘာသာမန်</a></li><li class="interlanguage-link interwiki-mzn mw-list-item"><a href="https://mzn.wikipedia.org/wiki/%D9%85%D8%A7%DA%98%D9%88%D9%84:Date" title="ماژول:Date – Mazanderani" lang="mzn" hreflang="mzn" data-title="ماژول:Date" data-language-autonym="مازِرونی" data-language-local-name="Mazanderani" class="interlanguage-link-target">مازِرونی</a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Modul:Date" title="Modul:Date – Malay" lang="ms" hreflang="ms" data-title="Modul:Date" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" class="interlanguage-link-target">Bahasa Melayu</a></li><li class="interlanguage-link interwiki-fat mw-list-item"><a href="https://fat.wikipedia.org/wiki/Module:Date" title="Module:Date – Fanti" lang="fat" hreflang="fat" data-title="Module:Date" data-language-autonym="Mfantse" data-language-local-name="Fanti" class="interlanguage-link-target">Mfantse</a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/Module:Date" title="Module:Date – Mongolian" lang="mn" hreflang="mn" data-title="Module:Date" data-language-autonym="Монгол" data-language-local-name="Mongolian" class="interlanguage-link-target">Монгол</a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%99%E1%80%B1%E1%80%AC%E1%80%BA%E1%80%82%E1%80%BB%E1%80%B0%E1%80%B8:Date" title="မော်ဂျူး:Date – Burmese" lang="my" hreflang="my" data-title="မော်ဂျူး:Date" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="Burmese" class="interlanguage-link-target">မြန်မာဘာသာ</a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%AE%E0%A5%8B%E0%A4%A1%E0%A5%8D%E0%A4%AF%E0%A5%81%E0%A4%B2:Date" title="मोड्युल:Date – Nepali" lang="ne" hreflang="ne" data-title="मोड्युल:Date" data-language-autonym="नेपाली" data-language-local-name="Nepali" class="interlanguage-link-target">नेपाली</a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%83%A2%E3%82%B8%E3%83%A5%E3%83%BC%E3%83%AB:Date" title="モジュール:Date – Japanese" lang="ja" hreflang="ja" data-title="モジュール:Date" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target">日本語</a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Modul:Date" title="Modul:Date – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Modul:Date" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target">Norsk bokmål</a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Modul:Date" title="Modul:Date – Norwegian Nynorsk" lang="nn" hreflang="nn" data-title="Modul:Date" data-language-autonym="Norsk nynorsk" data-language-local-name="Norwegian Nynorsk" class="interlanguage-link-target">Norsk nynorsk</a></li><li class="interlanguage-link interwiki-or mw-list-item"><a href="https://or.wikipedia.org/wiki/%E0%AC%AE%E0%AC%A1%E0%AD%8D%E0%AD%9F%E0%AD%81%E0%AC%B2:Date" title="ମଡ୍ୟୁଲ:Date – Odia" lang="or" hreflang="or" data-title="ମଡ୍ୟୁଲ:Date" data-language-autonym="ଓଡ଼ିଆ" data-language-local-name="Odia" class="interlanguage-link-target">ଓଡ଼ିଆ</a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Modul:Date" title="Modul:Date – Uzbek" lang="uz" hreflang="uz" data-title="Modul:Date" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="Uzbek" class="interlanguage-link-target">Oʻzbekcha / ўзбекча</a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%AE%E0%A9%8C%E0%A8%A1%E0%A8%BF%E0%A8%8A%E0%A8%B2:Date" title="ਮੌਡਿਊਲ:Date – Punjabi" lang="pa" hreflang="pa" data-title="ਮੌਡਿਊਲ:Date" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="Punjabi" class="interlanguage-link-target">ਪੰਜਾਬੀ</a></li><li class="interlanguage-link interwiki-blk mw-list-item"><a href="https://blk.wikipedia.org/wiki/%E1%80%99%E1%80%B1%E1%80%AC%E1%80%BA%E1%80%82%E1%80%BB%E1%80%B0%E1%80%B8:Date" title="မော်ဂျူး:Date – Pa'O" lang="blk" hreflang="blk" data-title="မော်ဂျူး:Date" data-language-autonym="ပအိုဝ်ႏဘာႏသာႏ" data-language-local-name="Pa'O" class="interlanguage-link-target">ပအိုဝ်ႏဘာႏသာႏ</a></li><li class="interlanguage-link interwiki-pap mw-list-item"><a href="https://pap.wikipedia.org/wiki/Module:Date" title="Module:Date – Papiamento" lang="pap" hreflang="pap" data-title="Module:Date" data-language-autonym="Papiamentu" data-language-local-name="Papiamento" class="interlanguage-link-target">Papiamentu</a></li><li class="interlanguage-link interwiki-ps mw-list-item"><a href="https://ps.wikipedia.org/wiki/Module:Date" title="Module:Date – Pashto" lang="ps" hreflang="ps" data-title="Module:Date" data-language-autonym="پښتو" data-language-local-name="Pashto" class="interlanguage-link-target">پښتو</a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/M%C3%B3dulo:Data" title="Módulo:Data – Portuguese" lang="pt" hreflang="pt" data-title="Módulo:Data" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target">Português</a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Modul:DateUtils" title="Modul:DateUtils – Romanian" lang="ro" hreflang="ro" data-title="Modul:DateUtils" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target">Română</a></li><li class="interlanguage-link interwiki-rue mw-list-item"><a href="https://rue.wikipedia.org/wiki/%D0%9C%D0%BE%D0%B4%D1%83%D0%BB%D1%8C:Date" title="Модуль:Date – Rusyn" lang="rue" hreflang="rue" data-title="Модуль:Date" data-language-autonym="Русиньскый" data-language-local-name="Rusyn" class="interlanguage-link-target">Русиньскый</a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9C%D0%BE%D0%B4%D1%83%D0%BB%D1%8C:Date" title="Модуль:Date – Russian" lang="ru" hreflang="ru" data-title="Модуль:Date" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target">Русский</a></li><li class="interlanguage-link interwiki-skr mw-list-item"><a href="https://skr.wikipedia.org/wiki/%D9%85%D8%A7%DA%88%DB%8C%D9%88%D9%84:Date" title="ماڈیول:Date – Saraiki" lang="skr" hreflang="skr" data-title="ماڈیول:Date" data-language-autonym="سرائیکی" data-language-local-name="Saraiki" class="interlanguage-link-target">سرائیکی</a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Module:Date" title="Module:Date – Scots" lang="sco" hreflang="sco" data-title="Module:Date" data-language-autonym="Scots" data-language-local-name="Scots" class="interlanguage-link-target">Scots</a></li><li class="interlanguage-link interwiki-tn mw-list-item"><a href="https://tn.wikipedia.org/wiki/Module:Date" title="Module:Date – Tswana" lang="tn" hreflang="tn" data-title="Module:Date" data-language-autonym="Setswana" data-language-local-name="Tswana" class="interlanguage-link-target">Setswana</a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Moduli:Date" title="Moduli:Date – Albanian" lang="sq" hreflang="sq" data-title="Moduli:Date" data-language-autonym="Shqip" data-language-local-name="Albanian" class="interlanguage-link-target">Shqip</a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/Module:Date" title="Module:Date – Sinhala" lang="si" hreflang="si" data-title="Module:Date" data-language-autonym="සිංහල" data-language-local-name="Sinhala" class="interlanguage-link-target">සිංහල</a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%D9%85%D8%A7%DA%8A%D9%8A%D9%88%D9%84:Date" title="ماڊيول:Date – Sindhi" lang="sd" hreflang="sd" data-title="ماڊيول:Date" data-language-autonym="سنڌي" data-language-local-name="Sindhi" class="interlanguage-link-target">سنڌي</a></li><li class="interlanguage-link interwiki-ss mw-list-item"><a href="https://ss.wikipedia.org/wiki/Module:Date" title="Module:Date – Swati" lang="ss" hreflang="ss" data-title="Module:Date" data-language-autonym="SiSwati" data-language-local-name="Swati" class="interlanguage-link-target">SiSwati</a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Modul:Date" title="Modul:Date – Slovenian" lang="sl" hreflang="sl" data-title="Modul:Date" data-language-autonym="Slovenščina" data-language-local-name="Slovenian" class="interlanguage-link-target">Slovenščina</a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D9%85%DB%86%D8%AF%DB%8C%D9%88%D9%88%D9%84:Date" title="مۆدیوول:Date – Central Kurdish" lang="ckb" hreflang="ckb" data-title="مۆدیوول:Date" data-language-autonym="کوردی" data-language-local-name="Central Kurdish" class="interlanguage-link-target">کوردی</a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9C%D0%BE%D0%B4%D1%83%D0%BB:Date" title="Модул:Date – Serbian" lang="sr" hreflang="sr" data-title="Модул:Date" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target">Српски / srpski</a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Modul:Date" title="Modul:Date – Serbo-Croatian" lang="sh" hreflang="sh" data-title="Modul:Date" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Serbo-Croatian" class="interlanguage-link-target">Srpskohrvatski / српскохрватски</a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Moduuli:Fr:Date" title="Moduuli:Fr:Date – Finnish" lang="fi" hreflang="fi" data-title="Moduuli:Fr:Date" data-language-autonym="Suomi" data-language-local-name="Finnish" class="interlanguage-link-target">Suomi</a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Module:Date" title="Module:Date – Tagalog" lang="tl" hreflang="tl" data-title="Module:Date" data-language-autonym="Tagalog" data-language-local-name="Tagalog" class="interlanguage-link-target">Tagalog</a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/Module:Date" title="Module:Date – Tamil" lang="ta" hreflang="ta" data-title="Module:Date" data-language-autonym="தமிழ்" data-language-local-name="Tamil" class="interlanguage-link-target">தமிழ்</a></li><li class="interlanguage-link interwiki-kab mw-list-item"><a href="https://kab.wikipedia.org/wiki/Module:Date" title="Module:Date – Kabyle" lang="kab" hreflang="kab" data-title="Module:Date" data-language-autonym="Taqbaylit" data-language-local-name="Kabyle" class="interlanguage-link-target">Taqbaylit</a></li><li class="interlanguage-link interwiki-shn mw-list-item"><a href="https://shn.wikipedia.org/wiki/%E1%80%99%E1%80%B1%E1%82%83%E1%82%87%E1%81%B5%E1%80%BB%E1%80%B0%E1%80%B8:Date" title="မေႃႇၵျူး:Date – Shan" lang="shn" hreflang="shn" data-title="မေႃႇၵျူး:Date" data-language-autonym="ၽႃႇသႃႇတႆး " data-language-local-name="Shan" class="interlanguage-link-target">ၽႃႇသႃႇတႆး </a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%AE%E0%B0%BE%E0%B0%A1%E0%B1%8D%E0%B0%AF%E0%B1%82%E0%B0%B2%E0%B1%8D:Date" title="మాడ్యూల్:Date – Telugu" lang="te" hreflang="te" data-title="మాడ్యూల్:Date" data-language-autonym="తెలుగు" data-language-local-name="Telugu" class="interlanguage-link-target">తెలుగు</a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%A1%E0%B8%AD%E0%B8%94%E0%B8%B9%E0%B8%A5:Date" title="มอดูล:Date – Thai" lang="th" hreflang="th" data-title="มอดูล:Date" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target">ไทย</a></li><li class="interlanguage-link interwiki-ti mw-list-item"><a href="https://ti.wikipedia.org/wiki/%E1%88%9E%E1%8B%B5%E1%8B%A9%E1%88%8D:Date" title="ሞድዩል:Date – Tigrinya" lang="ti" hreflang="ti" data-title="ሞድዩል:Date" data-language-autonym="ትግርኛ" data-language-local-name="Tigrinya" class="interlanguage-link-target">ትግርኛ</a></li><li class="interlanguage-link interwiki-tg mw-list-item"><a href="https://tg.wikipedia.org/wiki/%D0%9C%D0%BE%D0%B4%D1%83%D0%BB:Date" title="Модул:Date – Tajik" lang="tg" hreflang="tg" data-title="Модул:Date" data-language-autonym="Тоҷикӣ" data-language-local-name="Tajik" class="interlanguage-link-target">Тоҷикӣ</a></li><li class="interlanguage-link interwiki-tcy mw-list-item"><a href="https://tcy.wikipedia.org/wiki/%E0%B2%AE%E0%B3%8B%E0%B2%A1%E0%B3%8D%E0%B2%AF%E0%B3%82%E0%B2%B2%E0%B3%8D:Date" title="ಮೋಡ್ಯೂಲ್:Date – Tulu" lang="tcy" hreflang="tcy" data-title="ಮೋಡ್ಯೂಲ್:Date" data-language-autonym="ತುಳು" data-language-local-name="Tulu" class="interlanguage-link-target">ತುಳು</a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Mod%C3%BCl:Tarih" title="Modül:Tarih – Turkish" lang="tr" hreflang="tr" data-title="Modül:Tarih" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target">Türkçe</a></li><li class="interlanguage-link interwiki-tk mw-list-item"><a href="https://tk.wikipedia.org/wiki/Module:Date" title="Module:Date – Turkmen" lang="tk" hreflang="tk" data-title="Module:Date" data-language-autonym="Türkmençe" data-language-local-name="Turkmen" class="interlanguage-link-target">Türkmençe</a></li><li class="interlanguage-link interwiki-kcg mw-list-item"><a href="https://kcg.wikipedia.org/wiki/Module:Date" title="Module:Date – Tyap" lang="kcg" hreflang="kcg" data-title="Module:Date" data-language-autonym="Tyap" data-language-local-name="Tyap" class="interlanguage-link-target">Tyap</a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9C%D0%BE%D0%B4%D1%83%D0%BB%D1%8C:Date" title="Модуль:Date – Ukrainian" lang="uk" hreflang="uk" data-title="Модуль:Date" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target">Українська</a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D9%85%D8%A7%DA%88%DB%8C%D9%88%D9%84:Date" title="ماڈیول:Date – Urdu" lang="ur" hreflang="ur" data-title="ماڈیول:Date" data-language-autonym="اردو" data-language-local-name="Urdu" class="interlanguage-link-target">اردو</a></li><li class="interlanguage-link interwiki-vec mw-list-item"><a href="https://vec.wikipedia.org/wiki/Modulo:Date" title="Modulo:Date – Venetian" lang="vec" hreflang="vec" data-title="Modulo:Date" data-language-autonym="Vèneto" data-language-local-name="Venetian" class="interlanguage-link-target">Vèneto</a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/M%C3%B4_%C4%91un:Date" title="Mô đun:Date – Vietnamese" lang="vi" hreflang="vi" data-title="Mô đun:Date" data-language-autonym="Tiếng Việt" data-language-local-name="Vietnamese" class="interlanguage-link-target">Tiếng Việt</a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Module:Date" title="Module:Date – Waray" lang="war" hreflang="war" data-title="Module:Date" data-language-autonym="Winaray" data-language-local-name="Waray" class="interlanguage-link-target">Winaray</a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E6%A8%A1%E5%9D%97:Date" title="模块:Date – Wu" lang="wuu" hreflang="wuu" data-title="模块:Date" data-language-autonym="吴语" data-language-local-name="Wu" class="interlanguage-link-target">吴语</a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%99%D7%97%D7%99%D7%93%D7%94:%D7%93%D7%90%D7%98%D7%A2" title="יחידה:דאטע – Yiddish" lang="yi" hreflang="yi" data-title="יחידה:דאטע" data-language-autonym="ייִדיש" data-language-local-name="Yiddish" class="interlanguage-link-target">ייִדיש</a></li><li 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Dates in the <a href="/wiki/Gregorian_calendar" title="Gregorian calendar">Gregorian calendar</a> and the <a href="/wiki/Julian_calendar" title="Julian calendar">Julian calendar</a> are supported, from 9999 BCE to 9999 CE. The calendars are proleptic—they are assumed to apply at all times with no irregularities. A date, with an optional time, can be specified in a variety of formats, and can be converted for display using a variety of formats, for example, 1 April 2016 or April 1, 2016. The properties of a date include its <a href="/wiki/Julian_day" title="Julian day">Julian date</a> and its Gregorian serial date, as well as the day-of-week and day-of-year. Dates can be compared (for example, <code>date1 <= date2</code>), and can be used with add or subtract (for example, <code>date + '3 months'</code>). The difference between two dates can be determined with <code>date1 - date2</code>. These operations work with both Gregorian and Julian calendar dates, but <code>date1 - date2</code> is nil if the two dates use different calendars. The module provides the following items. <table class="wikitable"> <tbody><tr> <th>Export</th> <th>Description </th></tr> <tr> <td><code>_current</code></td> <td>Table with the current year, month, day, hour, minute, second. </td></tr> <tr> <td><code>_Date</code></td> <td>Function that returns a table for a specified date. </td></tr> <tr> <td><code>_days_in_month</code></td> <td>Function that returns the number of days in a month. </td></tr></tbody></table> The following has examples of using the module: <ul><li><a href="/wiki/Module:Date/example" title="Module:Date/example">Module:Date/example</a> • Demonstration showing how Module:Date may be used.</li> <li><a href="/wiki/Module_talk:Date/example" title="Module talk:Date/example">Module talk:Date/example</a> • Output from the demonstration.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Formatted_output">Formatted output</h2></div> A date can be formatted as text. <div class="mw-highlight mw-highlight-lang-lua mw-content-ltr" dir="ltr"><pre>local Date = require('Module:Date')._Date local text = Date(2016, 7, 1):text() -- result is '1 July 2016' local text = Date(2016, 7, 1):text('%-d %B') -- result is '1 July' local text = Date('1 July 2016'):text('mdy') -- result is 'July 1, 2016' </pre></div> The following simplified formatting codes are available. <table class="wikitable"> <tbody><tr> <th>Code</th> <th>Result </th></tr> <tr> <td>hm</td> <td>hour:minute, with "am" or "pm" or variant, if specified (14:30 or 2:30 pm or variant) </td></tr> <tr> <td>hms</td> <td>hour:minute:second (14:30:45) </td></tr> <tr> <td>ymd</td> <td>year-month-day (2016-07-01) </td></tr> <tr> <td>mdy</td> <td>month day, year (July 1, 2016) </td></tr> <tr> <td>dmy</td> <td>day month year (1 July 2016) </td></tr></tbody></table> The following formatting codes (similar to <a href="/w/index.php?title=Strftime&action=edit&redlink=1" class="new" title="Strftime (not yet started)">strftime</a>) are available. <table class="wikitable"> <tbody><tr> <th>Code</th> <th>Result </th></tr> <tr> <td>%a</td> <td>Day abbreviation: Mon, Tue, ... </td></tr> <tr> <td>%A</td> <td>Day name: Monday, Tuesday, ... </td></tr> <tr> <td>%u</td> <td>Day of week: 1 to 7 (Monday to Sunday) </td></tr> <tr> <td>%w</td> <td>Day of week: 0 to 6 (Sunday to Saturday) </td></tr> <tr> <td>%d</td> <td>Day of month zero-padded: 01 to 31 </td></tr> <tr> <td>%b</td> <td>Month abbreviation: Jan to Dec </td></tr> <tr> <td>%B</td> <td>Month name: January to December </td></tr> <tr> <td>%m</td> <td>Month zero-padded: 01 to 12 </td></tr> <tr> <td>%Y</td> <td>Year zero-padded: 0012, 0120, 1200 </td></tr> <tr> <td>%H</td> <td>Hour 24-hour clock zero-padded: 00 to 23 </td></tr> <tr> <td>%I</td> <td>Hour 12-hour clock zero-padded: 01 to 12 </td></tr> <tr> <td>%p</td> <td>AM or PM or as in options </td></tr> <tr> <td>%M</td> <td>Minute zero-padded: 00 to 59 </td></tr> <tr> <td>%S</td> <td>Second zero-padded: 00 to 59 </td></tr> <tr> <td>%j</td> <td>Day of year zero-padded: 001 to 366 </td></tr> <tr> <td>%-d</td> <td>Day of month: 1 to 31 </td></tr> <tr> <td>%-m</td> <td>Month: 1 to 12 </td></tr> <tr> <td>%-Y</td> <td>Year: 12, 120, 1200 </td></tr> <tr> <td>%-H</td> <td>Hour: 0 to 23 </td></tr> <tr> <td>%-M</td> <td>Minute: 0 to 59 </td></tr> <tr> <td>%-S</td> <td>Second: 0 to 59 </td></tr> <tr> <td>%-j</td> <td>Day of year: 1 to 366 </td></tr> <tr> <td>%-I</td> <td>Hour: 1 to 12 </td></tr> <tr> <td>%%</td> <td>% </td></tr></tbody></table> In addition, <code>%{property}</code> (where <code>property</code> is any property of a date) can be used. For example, <code>Date('1 Feb 2015 14:30:45 A.D.')</code> has the following properties. <table class="wikitable"> <tbody><tr> <th>Code</th> <th>Result </th></tr> <tr> <td>%{calendar}</td> <td>Gregorian </td></tr> <tr> <td>%{year}</td> <td>2015 </td></tr> <tr> <td>%{month}</td> <td>2 </td></tr> <tr> <td>%{day}</td> <td>1 </td></tr> <tr> <td>%{hour}</td> <td>14 </td></tr> <tr> <td>%{minute}</td> <td>30 </td></tr> <tr> <td>%{second}</td> <td>45 </td></tr> <tr> <td>%{dayabbr}</td> <td>Sun </td></tr> <tr> <td>%{dayname}</td> <td>Sunday </td></tr> <tr> <td>%{dayofweek}</td> <td>0 </td></tr> <tr> <td>%{dow}</td> <td>0 (same as dayofweek) </td></tr> <tr> <td>%{dayofweekiso}</td> <td>7 </td></tr> <tr> <td>%{dowiso}</td> <td>7 (same as dayofweekiso) </td></tr> <tr> <td>%{dayofyear}</td> <td>32 </td></tr> <tr> <td>%{era}</td> <td>A.D. </td></tr> <tr> <td>%{gsd}</td> <td>735630 (numbers of days from 1 January 1 CE; the first is day 1) </td></tr> <tr> <td>%{juliandate}</td> <td>2457055.1046875 (<a href="/wiki/Julian_day" title="Julian day">Julian day</a>) </td></tr> <tr> <td>%{jd}</td> <td>2457055.1046875 (same as juliandate) </td></tr> <tr> <td>%{isleapyear}</td> <td>false </td></tr> <tr> <td>%{monthdays}</td> <td>28 </td></tr> <tr> <td>%{monthabbr}</td> <td>Feb </td></tr> <tr> <td>%{monthname}</td> <td>February </td></tr></tbody></table> Some shortcuts are available. Given <code>date = Date('1 Feb 2015 14:30')</code>, the following results would occur. <table class="wikitable"> <tbody><tr> <th>Code</th> <th>Description</th> <th>Example result</th> <th>Equivalent format </th></tr> <tr> <td>date:text('%c')</td> <td>date and time</td> <td>2:30 pm 1 February 2015</td> <td>%-I:%M %p %-d %B %-Y %{era} </td></tr> <tr> <td>date:text('%x')</td> <td>date</td> <td>1 February 2015</td> <td>%-d %B %-Y %{era} </td></tr> <tr> <td>date:text('%X')</td> <td>time</td> <td>2:30 pm</td> <td>%-I:%M %p </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Julian_date">Julian date</h2></div> The following has an example of converting a <a href="/wiki/Julian_day" title="Julian day">Julian date</a> to a date, then obtaining information about the date. <div class="mw-highlight mw-highlight-lang-lua mw-content-ltr" dir="ltr"><pre>-- Code -- Result Date = require('Module:Date')._Date date = Date('juliandate', 320) number = date.gsd -- -1721105 number = date.jd -- 320 text = date.dayname -- Saturday text = date:text() -- 9 October 4713&nbsp;BC text = date:text('%Y-%m-%d') -- 4713-10-09 text = date:text('%{era} %Y-%m-%d') -- BC 4713-10-09 text = date:text('%Y-%m-%d %{era}') -- 4713-10-09&nbsp;BC text = date:text('%Y-%m-%d %{era}', 'era=B.C.E.') -- 4713-10-09&nbsp;B.C.E. text = date:text('%Y-%m-%d', 'era=BCNEGATIVE') -- -4712-10-09 text = date:text('%Y-%m-%d', 'era=BCMINUS') -- −4712-10-09 (uses Unicode MINUS SIGN U+2212) text = Date('juliandate',320):text('%{gsd} %{jd}') -- -1721105 320 text = Date('Oct 9, 4713 B.C.E.'):text('%{gsd} %{jd}') -- -1721105 320 text = Date(-4712,10,9):text('%{gsd} %{jd}') -- -1721105 320 </pre></div> <div class="mw-heading mw-heading2"><h2 id="Date_differences">Date differences</h2></div> The difference between two dates can be determined with <code>date1 - date2</code>. The result is valid if both dates use the Gregorian calendar or if both dates use the Julian calendar, otherwise the result is nil. An age and duration can be calculated from a date difference. For example: <div class="mw-highlight mw-highlight-lang-lua mw-content-ltr" dir="ltr"><pre>-- Code -- Result Date = require('Module:Date')._Date date1 = Date('21 Mar 2015') date2 = Date('4 Dec 1999') diff = date1 - date2 d = diff.age_days -- 5586 y, m, d = diff.years, diff.months, diff.days -- 15, 3, 17 (15 years + 3 months + 17 days) y, m, d = diff:age('ymd') -- 15, 3, 17 y, m, w, d = diff:age('ymwd') -- 15, 3, 2, 3 (15 years + 3 months + 2 weeks + 3 days) y, m, w, d = diff:duration('ymwd') -- 15, 3, 2, 4 d = diff:duration('d') -- 5587 (a duration includes the final day) </pre></div> A date difference holds the original dates except they are swapped so <code>diff.date1 >= diff.date2</code> (<code>diff.date1</code> is the more recent date). This is shown in the following. <div class="mw-highlight mw-highlight-lang-lua mw-content-ltr" dir="ltr"><pre>date1 = Date('21 Mar 2015') date2 = Date('4 Dec 1999') diff = date1 - date2 neg = diff.isnegative -- false text = diff.date1:text() -- 21 March 2015 text = diff.date2:text() -- 4 December 1999 diff = date2 - date1 neg = diff.isnegative -- true (dates have been swapped) text = diff.date1:text() -- 21 March 2015 text = diff.date2:text() -- 4 December 1999 </pre></div> A date difference also holds a time difference: <div class="mw-highlight mw-highlight-lang-lua mw-content-ltr" dir="ltr"><pre>date1 = Date('8 Mar 2016 0:30:45') date2 = Date('19 Jan 2014 22:55') diff = date1 - date2 y, m, d = diff.years, diff.months, diff.days -- 2, 1, 17 H, M, S = diff.hours, diff.minutes, diff.seconds -- 1, 35, 45 </pre></div> A date difference can be added to a date, or subtracted from a date. <div class="mw-highlight mw-highlight-lang-lua mw-content-ltr" dir="ltr"><pre>date1 = Date('8 Mar 2016 0:30:45') date2 = Date('19 Jan 2014 22:55') diff = date1 - date2 date3 = date2 + diff date4 = date1 - diff text = date3:text('ymd hms') -- 2016-03-08 00:30:45 text = date4:text('ymd hms') -- 2014-01-19 22:55:00 equal = (date1 == date3) -- true equal = (date2 == date4) -- true </pre></div> The age and duration methods of a date difference accept a code that identifies the components that should be returned. An extra day is included for the duration method because it includes the final day. <table class="wikitable"> <tbody><tr> <th>Code</th> <th>Returned values </th></tr> <tr> <td><code>'ymwd'</code></td> <td>years, months, weeks, days </td></tr> <tr> <td><code>'ymd'</code></td> <td>years, months, days </td></tr> <tr> <td><code>'ym'</code></td> <td>years, months </td></tr> <tr> <td><code>'y'</code></td> <td>years </td></tr> <tr> <td><code>'m'</code></td> <td>months </td></tr> <tr> <td><code>'wd'</code></td> <td>weeks, days </td></tr> <tr> <td><code>'w'</code></td> <td>weeks </td></tr> <tr> <td><code>'d'</code></td> <td>days </td></tr></tbody></table> <hr /><div class="mw-highlight mw-highlight-lang-lua mw-content-ltr mw-highlight-lines" dir="ltr"><pre><a href="#L-1"></a>-- Date functions for use by other modules. <a href="#L-2"></a>-- I18N and time zones are not supported. <a href="#L-3"></a> <a href="#L-4"></a>local MINUS = '−' -- Unicode U+2212 MINUS SIGN <a href="#L-5"></a>local floor = math.floor <a href="#L-6"></a> <a href="#L-7"></a>local Date, DateDiff, diffmt -- forward declarations <a href="#L-8"></a>local uniq = { 'unique identifier' } <a href="#L-9"></a> <a href="#L-10"></a>local function is_date(t) <a href="#L-11"></a> -- The system used to make a date read-only means there is no unique <a href="#L-12"></a> -- metatable that is conveniently accessible to check. <a href="#L-13"></a> return type(t) == 'table' and t._id == uniq <a href="#L-14"></a>end <a href="#L-15"></a> <a href="#L-16"></a>local function is_diff(t) <a href="#L-17"></a> return type(t) == 'table' and getmetatable(t) == diffmt <a href="#L-18"></a>end <a href="#L-19"></a> <a href="#L-20"></a>local function _list_join(list, sep) <a href="#L-21"></a> return table.concat(list, sep) <a href="#L-22"></a>end <a href="#L-23"></a> <a href="#L-24"></a>local function collection() <a href="#L-25"></a> -- Return a table to hold items. <a href="#L-26"></a> return { <a href="#L-27"></a> n = 0, <a href="#L-28"></a> add = function (self, item) <a href="#L-29"></a> self.n = self.n + 1 <a href="#L-30"></a> self[self.n] = item <a href="#L-31"></a> end, <a href="#L-32"></a> join = _list_join, <a href="#L-33"></a> } <a href="#L-34"></a>end <a href="#L-35"></a> <a href="#L-36"></a>local function strip_to_nil(text) <a href="#L-37"></a> -- If text is a string, return its trimmed content, or nil if empty. <a href="#L-38"></a> -- Otherwise return text (convenient when Date fields are provided from <a href="#L-39"></a> -- another module which may pass a string, a number, or another type). <a href="#L-40"></a> if type(text) == 'string' then <a href="#L-41"></a> text = text:match('(%S.-)%s*$') <a href="#L-42"></a> end <a href="#L-43"></a> return text <a href="#L-44"></a>end <a href="#L-45"></a> <a href="#L-46"></a>local function is_leap_year(year, calname) <a href="#L-47"></a> -- Return true if year is a leap year. <a href="#L-48"></a> if calname == 'Julian' then <a href="#L-49"></a> return year % 4 == 0 <a href="#L-50"></a> end <a href="#L-51"></a> return (year % 4 == 0 and year % 100 ~= 0) or year % 400 == 0 <a href="#L-52"></a>end <a href="#L-53"></a> <a href="#L-54"></a>local function days_in_month(year, month, calname) <a href="#L-55"></a> -- Return number of days (1..31) in given month (1..12). <a href="#L-56"></a> if month == 2 and is_leap_year(year, calname) then <a href="#L-57"></a> return 29 <a href="#L-58"></a> end <a href="#L-59"></a> return ({ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 })[month] <a href="#L-60"></a>end <a href="#L-61"></a> <a href="#L-62"></a>local function h_m_s(time) <a href="#L-63"></a> -- Return hour, minute, second extracted from fraction of a day. <a href="#L-64"></a> time = floor(time * 24 * 3600 + 0.5) -- number of seconds <a href="#L-65"></a> local second = time % 60 <a href="#L-66"></a> time = floor(time / 60) <a href="#L-67"></a> return floor(time / 60), time % 60, second <a href="#L-68"></a>end <a href="#L-69"></a> <a href="#L-70"></a>local function hms(date) <a href="#L-71"></a> -- Return fraction of a day from date's time, where (0 <= fraction < 1) <a href="#L-72"></a> -- if the values are valid, but could be anything if outside range. <a href="#L-73"></a> return (date.hour + (date.minute + date.second / 60) / 60) / 24 <a href="#L-74"></a>end <a href="#L-75"></a> <a href="#L-76"></a>local function julian_date(date) <a href="#L-77"></a> -- Return jd, jdz from a Julian or Gregorian calendar date where <a href="#L-78"></a> -- jd = Julian date and its fractional part is zero at noon <a href="#L-79"></a> -- jdz = same, but assume time is 00:00:00 if no time given <a href="#L-80"></a> -- http://www.tondering.dk/claus/cal/julperiod.php#formula <a href="#L-81"></a> -- Testing shows this works for all dates from year -9999 to 9999! <a href="#L-82"></a> -- JDN 0 is the 24-hour period starting at noon UTC on Monday <a href="#L-83"></a> -- 1 January 4713 BC = (-4712, 1, 1) Julian calendar <a href="#L-84"></a> -- 24 November 4714 BC = (-4713, 11, 24) Gregorian calendar <a href="#L-85"></a> local offset <a href="#L-86"></a> local a = floor((14 - date.month)/12) <a href="#L-87"></a> local y = date.year + 4800 - a <a href="#L-88"></a> if date.calendar == 'Julian' then <a href="#L-89"></a> offset = floor(y/4) - 32083 <a href="#L-90"></a> else <a href="#L-91"></a> offset = floor(y/4) - floor(y/100) + floor(y/400) - 32045 <a href="#L-92"></a> end <a href="#L-93"></a> local m = date.month + 12*a - 3 <a href="#L-94"></a> local jd = date.day + floor((153*m + 2)/5) + 365*y + offset <a href="#L-95"></a> if date.hastime then <a href="#L-96"></a> jd = jd + hms(date) - 0.5 <a href="#L-97"></a> return jd, jd <a href="#L-98"></a> end <a href="#L-99"></a> return jd, jd - 0.5 <a href="#L-100"></a>end <a href="#L-101"></a> <a href="#L-102"></a>local function set_date_from_jd(date) <a href="#L-103"></a> -- Set the fields of table date from its Julian date field. <a href="#L-104"></a> -- Return true if date is valid. <a href="#L-105"></a> -- http://www.tondering.dk/claus/cal/julperiod.php#formula <a href="#L-106"></a> -- This handles the proleptic Julian and Gregorian calendars. <a href="#L-107"></a> -- Negative Julian dates are not defined but they work. <a href="#L-108"></a> local calname = date.calendar <a href="#L-109"></a> local low, high -- min/max limits for date ranges −9999-01-01 to 9999-12-31 <a href="#L-110"></a> if calname == 'Gregorian' then <a href="#L-111"></a> low, high = -1930999.5, 5373484.49999 <a href="#L-112"></a> elseif calname == 'Julian' then <a href="#L-113"></a> low, high = -1931076.5, 5373557.49999 <a href="#L-114"></a> else <a href="#L-115"></a> return <a href="#L-116"></a> end <a href="#L-117"></a> local jd = date.jd <a href="#L-118"></a> if not (type(jd) == 'number' and low <= jd and jd <= high) then <a href="#L-119"></a> return <a href="#L-120"></a> end <a href="#L-121"></a> local jdn = floor(jd) <a href="#L-122"></a> if date.hastime then <a href="#L-123"></a> local time = jd - jdn -- 0 <= time < 1 <a href="#L-124"></a> if time >= 0.5 then -- if at or after midnight of next day <a href="#L-125"></a> jdn = jdn + 1 <a href="#L-126"></a> time = time - 0.5 <a href="#L-127"></a> else <a href="#L-128"></a> time = time + 0.5 <a href="#L-129"></a> end <a href="#L-130"></a> date.hour, date.minute, date.second = h_m_s(time) <a href="#L-131"></a> else <a href="#L-132"></a> date.second = 0 <a href="#L-133"></a> date.minute = 0 <a href="#L-134"></a> date.hour = 0 <a href="#L-135"></a> end <a href="#L-136"></a> local b, c <a href="#L-137"></a> if calname == 'Julian' then <a href="#L-138"></a> b = 0 <a href="#L-139"></a> c = jdn + 32082 <a href="#L-140"></a> else -- Gregorian <a href="#L-141"></a> local a = jdn + 32044 <a href="#L-142"></a> b = floor((4*a + 3)/146097) <a href="#L-143"></a> c = a - floor(146097*b/4) <a href="#L-144"></a> end <a href="#L-145"></a> local d = floor((4*c + 3)/1461) <a href="#L-146"></a> local e = c - floor(1461*d/4) <a href="#L-147"></a> local m = floor((5*e + 2)/153) <a href="#L-148"></a> date.day = e - floor((153*m + 2)/5) + 1 <a href="#L-149"></a> date.month = m + 3 - 12*floor(m/10) <a href="#L-150"></a> date.year = 100*b + d - 4800 + floor(m/10) <a href="#L-151"></a> return true <a href="#L-152"></a>end <a href="#L-153"></a> <a href="#L-154"></a>local function fix_numbers(numbers, y, m, d, H, M, S, partial, hastime, calendar) <a href="#L-155"></a> -- Put the result of normalizing the given values in table numbers. <a href="#L-156"></a> -- The result will have valid m, d values if y is valid; caller checks y. <a href="#L-157"></a> -- The logic of PHP mktime is followed where m or d can be zero to mean <a href="#L-158"></a> -- the previous unit, and -1 is the one before that, etc. <a href="#L-159"></a> -- Positive values carry forward. <a href="#L-160"></a> local date <a href="#L-161"></a> if not (1 <= m and m <= 12) then <a href="#L-162"></a> date = Date(y, 1, 1) <a href="#L-163"></a> if not date then return end <a href="#L-164"></a> date = date + ((m - 1) .. 'm') <a href="#L-165"></a> y, m = date.year, date.month <a href="#L-166"></a> end <a href="#L-167"></a> local days_hms <a href="#L-168"></a> if not partial then <a href="#L-169"></a> if hastime and H and M and S then <a href="#L-170"></a> if not (0 <= H and H <= 23 and <a href="#L-171"></a> 0 <= M and M <= 59 and <a href="#L-172"></a> 0 <= S and S <= 59) then <a href="#L-173"></a> days_hms = hms({ hour = H, minute = M, second = S }) <a href="#L-174"></a> end <a href="#L-175"></a> end <a href="#L-176"></a> if days_hms or not (1 <= d and d <= days_in_month(y, m, calendar)) then <a href="#L-177"></a> date = date or Date(y, m, 1) <a href="#L-178"></a> if not date then return end <a href="#L-179"></a> date = date + (d - 1 + (days_hms or 0)) <a href="#L-180"></a> y, m, d = date.year, date.month, date.day <a href="#L-181"></a> if days_hms then <a href="#L-182"></a> H, M, S = date.hour, date.minute, date.second <a href="#L-183"></a> end <a href="#L-184"></a> end <a href="#L-185"></a> end <a href="#L-186"></a> numbers.year = y <a href="#L-187"></a> numbers.month = m <a href="#L-188"></a> numbers.day = d <a href="#L-189"></a> if days_hms then <a href="#L-190"></a> -- Don't set H unless it was valid because a valid H will set hastime. <a href="#L-191"></a> numbers.hour = H <a href="#L-192"></a> numbers.minute = M <a href="#L-193"></a> numbers.second = S <a href="#L-194"></a> end <a href="#L-195"></a>end <a href="#L-196"></a> <a href="#L-197"></a>local function set_date_from_numbers(date, numbers, options) <a href="#L-198"></a> -- Set the fields of table date from numeric values. <a href="#L-199"></a> -- Return true if date is valid. <a href="#L-200"></a> if type(numbers) ~= 'table' then <a href="#L-201"></a> return <a href="#L-202"></a> end <a href="#L-203"></a> local y = numbers.year or date.year <a href="#L-204"></a> local m = numbers.month or date.month <a href="#L-205"></a> local d = numbers.day or date.day <a href="#L-206"></a> local H = numbers.hour <a href="#L-207"></a> local M = numbers.minute or date.minute or 0 <a href="#L-208"></a> local S = numbers.second or date.second or 0 <a href="#L-209"></a> local need_fix <a href="#L-210"></a> if y and m and d then <a href="#L-211"></a> date.partial = nil <a href="#L-212"></a> if not (-9999 <= y and y <= 9999 and <a href="#L-213"></a> 1 <= m and m <= 12 and <a href="#L-214"></a> 1 <= d and d <= days_in_month(y, m, date.calendar)) then <a href="#L-215"></a> if not date.want_fix then <a href="#L-216"></a> return <a href="#L-217"></a> end <a href="#L-218"></a> need_fix = true <a href="#L-219"></a> end <a href="#L-220"></a> elseif y and date.partial then <a href="#L-221"></a> if d or not (-9999 <= y and y <= 9999) then <a href="#L-222"></a> return <a href="#L-223"></a> end <a href="#L-224"></a> if m and not (1 <= m and m <= 12) then <a href="#L-225"></a> if not date.want_fix then <a href="#L-226"></a> return <a href="#L-227"></a> end <a href="#L-228"></a> need_fix = true <a href="#L-229"></a> end <a href="#L-230"></a> else <a href="#L-231"></a> return <a href="#L-232"></a> end <a href="#L-233"></a> if date.partial then <a href="#L-234"></a> H = nil -- ignore any time <a href="#L-235"></a> M = nil <a href="#L-236"></a> S = nil <a href="#L-237"></a> else <a href="#L-238"></a> if H then <a href="#L-239"></a> -- It is not possible to set M or S without also setting H. <a href="#L-240"></a> date.hastime = true <a href="#L-241"></a> else <a href="#L-242"></a> H = 0 <a href="#L-243"></a> end <a href="#L-244"></a> if not (0 <= H and H <= 23 and <a href="#L-245"></a> 0 <= M and M <= 59 and <a href="#L-246"></a> 0 <= S and S <= 59) then <a href="#L-247"></a> if date.want_fix then <a href="#L-248"></a> need_fix = true <a href="#L-249"></a> else <a href="#L-250"></a> return <a href="#L-251"></a> end <a href="#L-252"></a> end <a href="#L-253"></a> end <a href="#L-254"></a> date.want_fix = nil <a href="#L-255"></a> if need_fix then <a href="#L-256"></a> fix_numbers(numbers, y, m, d, H, M, S, date.partial, date.hastime, date.calendar) <a href="#L-257"></a> return set_date_from_numbers(date, numbers, options) <a href="#L-258"></a> end <a href="#L-259"></a> date.year = y -- -9999 to 9999 ('n BC' → year = 1 - n) <a href="#L-260"></a> date.month = m -- 1 to 12 (may be nil if partial) <a href="#L-261"></a> date.day = d -- 1 to 31 (* = nil if partial) <a href="#L-262"></a> date.hour = H -- 0 to 59 (*) <a href="#L-263"></a> date.minute = M -- 0 to 59 (*) <a href="#L-264"></a> date.second = S -- 0 to 59 (*) <a href="#L-265"></a> if type(options) == 'table' then <a href="#L-266"></a> for _, k in ipairs({ 'am', 'era', 'format' }) do <a href="#L-267"></a> if options[k] then <a href="#L-268"></a> date.options[k] = options[k] <a href="#L-269"></a> end <a href="#L-270"></a> end <a href="#L-271"></a> end <a href="#L-272"></a> return true <a href="#L-273"></a>end <a href="#L-274"></a> <a href="#L-275"></a>local function make_option_table(options1, options2) <a href="#L-276"></a> -- If options1 is a string, return a table with its settings, or <a href="#L-277"></a> -- if it is a table, use its settings. <a href="#L-278"></a> -- Missing options are set from table options2 or defaults. <a href="#L-279"></a> -- If a default is used, a flag is set so caller knows the value was not intentionally set. <a href="#L-280"></a> -- Valid option settings are: <a href="#L-281"></a> -- am: 'am', 'a.m.', 'AM', 'A.M.' <a href="#L-282"></a> -- 'pm', 'p.m.', 'PM', 'P.M.' (each has same meaning as corresponding item above) <a href="#L-283"></a> -- era: 'BCMINUS', 'BCNEGATIVE', 'BC', 'B.C.', 'BCE', 'B.C.E.', 'AD', 'A.D.', 'CE', 'C.E.' <a href="#L-284"></a> -- Option am = 'am' does not mean the hour is AM; it means 'am' or 'pm' is used, depending on the hour, <a href="#L-285"></a> -- and am = 'pm' has the same meaning. <a href="#L-286"></a> -- Similarly, era = 'BC' means 'BC' is used if year <= 0. <a href="#L-287"></a> -- BCMINUS displays a MINUS if year < 0 and the display format does not include %{era}. <a href="#L-288"></a> -- BCNEGATIVE is similar but displays a hyphen. <a href="#L-289"></a> local result = { bydefault = {} } <a href="#L-290"></a> if type(options1) == 'table' then <a href="#L-291"></a> result.am = options1.am <a href="#L-292"></a> result.era = options1.era <a href="#L-293"></a> elseif type(options1) == 'string' then <a href="#L-294"></a> -- Example: 'am:AM era:BC' or 'am=AM era=BC'. <a href="#L-295"></a> for item in options1:gmatch('%S+') do <a href="#L-296"></a> local lhs, rhs = item:match('^(%w+)[:=](.+)$') <a href="#L-297"></a> if lhs then <a href="#L-298"></a> result[lhs] = rhs <a href="#L-299"></a> end <a href="#L-300"></a> end <a href="#L-301"></a> end <a href="#L-302"></a> options2 = type(options2) == 'table' and options2 or {} <a href="#L-303"></a> local defaults = { am = 'am', era = 'BC' } <a href="#L-304"></a> for k, v in pairs(defaults) do <a href="#L-305"></a> if not result[k] then <a href="#L-306"></a> if options2[k] then <a href="#L-307"></a> result[k] = options2[k] <a href="#L-308"></a> else <a href="#L-309"></a> result[k] = v <a href="#L-310"></a> result.bydefault[k] = true <a href="#L-311"></a> end <a href="#L-312"></a> end <a href="#L-313"></a> end <a href="#L-314"></a> return result <a href="#L-315"></a>end <a href="#L-316"></a> <a href="#L-317"></a>local ampm_options = { <a href="#L-318"></a> -- lhs = input text accepted as an am/pm option <a href="#L-319"></a> -- rhs = code used internally <a href="#L-320"></a> ['am'] = 'am', <a href="#L-321"></a> ['AM'] = 'AM', <a href="#L-322"></a> ['a.m.'] = 'a.m.', <a href="#L-323"></a> ['A.M.'] = 'A.M.', <a href="#L-324"></a> ['pm'] = 'am', -- same as am <a href="#L-325"></a> ['PM'] = 'AM', <a href="#L-326"></a> ['p.m.'] = 'a.m.', <a href="#L-327"></a> ['P.M.'] = 'A.M.', <a href="#L-328"></a>} <a href="#L-329"></a> <a href="#L-330"></a>local era_text = { <a href="#L-331"></a> -- Text for displaying an era with a positive year (after adjusting <a href="#L-332"></a> -- by replacing year with 1 - year if date.year <= 0). <a href="#L-333"></a> -- options.era = { year<=0 , year>0 } <a href="#L-334"></a> ['BCMINUS'] = { 'BC' , '' , isbc = true, sign = MINUS }, <a href="#L-335"></a> ['BCNEGATIVE'] = { 'BC' , '' , isbc = true, sign = '-' }, <a href="#L-336"></a> ['BC'] = { 'BC' , '' , isbc = true }, <a href="#L-337"></a> ['B.C.'] = { 'B.C.' , '' , isbc = true }, <a href="#L-338"></a> ['BCE'] = { 'BCE' , '' , isbc = true }, <a href="#L-339"></a> ['B.C.E.'] = { 'B.C.E.', '' , isbc = true }, <a href="#L-340"></a> ['AD'] = { 'BC' , 'AD' }, <a href="#L-341"></a> ['A.D.'] = { 'B.C.' , 'A.D.' }, <a href="#L-342"></a> ['CE'] = { 'BCE' , 'CE' }, <a href="#L-343"></a> ['C.E.'] = { 'B.C.E.', 'C.E.' }, <a href="#L-344"></a>} <a href="#L-345"></a> <a href="#L-346"></a>local function get_era_for_year(era, year) <a href="#L-347"></a> return (era_text[era] or era_text['BC'])[year > 0 and 2 or 1] or '' <a href="#L-348"></a>end <a href="#L-349"></a> <a href="#L-350"></a>local function strftime(date, format, options) <a href="#L-351"></a> -- Return date formatted as a string using codes similar to those <a href="#L-352"></a> -- in the C strftime library function. <a href="#L-353"></a> local sformat = string.format <a href="#L-354"></a> local shortcuts = { <a href="#L-355"></a> ['%c'] = '%-I:%M %p %-d %B %-Y %{era}', -- date and time: 2:30 pm 1 April 2016 <a href="#L-356"></a> ['%x'] = '%-d %B %-Y %{era}', -- date: 1 April 2016 <a href="#L-357"></a> ['%X'] = '%-I:%M %p', -- time: 2:30 pm <a href="#L-358"></a> } <a href="#L-359"></a> if shortcuts[format] then <a href="#L-360"></a> format = shortcuts[format] <a href="#L-361"></a> end <a href="#L-362"></a> local codes = { <a href="#L-363"></a> a = { field = 'dayabbr' }, <a href="#L-364"></a> A = { field = 'dayname' }, <a href="#L-365"></a> b = { field = 'monthabbr' }, <a href="#L-366"></a> B = { field = 'monthname' }, <a href="#L-367"></a> u = { fmt = '%d' , field = 'dowiso' }, <a href="#L-368"></a> w = { fmt = '%d' , field = 'dow' }, <a href="#L-369"></a> d = { fmt = '%02d', fmt2 = '%d', field = 'day' }, <a href="#L-370"></a> m = { fmt = '%02d', fmt2 = '%d', field = 'month' }, <a href="#L-371"></a> Y = { fmt = '%04d', fmt2 = '%d', field = 'year' }, <a href="#L-372"></a> H = { fmt = '%02d', fmt2 = '%d', field = 'hour' }, <a href="#L-373"></a> M = { fmt = '%02d', fmt2 = '%d', field = 'minute' }, <a href="#L-374"></a> S = { fmt = '%02d', fmt2 = '%d', field = 'second' }, <a href="#L-375"></a> j = { fmt = '%03d', fmt2 = '%d', field = 'dayofyear' }, <a href="#L-376"></a> I = { fmt = '%02d', fmt2 = '%d', field = 'hour', special = 'hour12' }, <a href="#L-377"></a> p = { field = 'hour', special = 'am' }, <a href="#L-378"></a> } <a href="#L-379"></a> options = make_option_table(options, date.options) <a href="#L-380"></a> local amopt = options.am <a href="#L-381"></a> local eraopt = options.era <a href="#L-382"></a> local function replace_code(spaces, modifier, id) <a href="#L-383"></a> local code = codes[id] <a href="#L-384"></a> if code then <a href="#L-385"></a> local fmt = code.fmt <a href="#L-386"></a> if modifier == '-' and code.fmt2 then <a href="#L-387"></a> fmt = code.fmt2 <a href="#L-388"></a> end <a href="#L-389"></a> local value = date[code.field] <a href="#L-390"></a> if not value then <a href="#L-391"></a> return nil -- an undefined field in a partial date <a href="#L-392"></a> end <a href="#L-393"></a> local special = code.special <a href="#L-394"></a> if special then <a href="#L-395"></a> if special == 'hour12' then <a href="#L-396"></a> value = value % 12 <a href="#L-397"></a> value = value == 0 and 12 or value <a href="#L-398"></a> elseif special == 'am' then <a href="#L-399"></a> local ap = ({ <a href="#L-400"></a> ['a.m.'] = { 'a.m.', 'p.m.' }, <a href="#L-401"></a> ['AM'] = { 'AM', 'PM' }, <a href="#L-402"></a> ['A.M.'] = { 'A.M.', 'P.M.' }, <a href="#L-403"></a> })[ampm_options[amopt]] or { 'am', 'pm' } <a href="#L-404"></a> return (spaces == '' and '' or '&nbsp;') .. (value < 12 and ap[1] or ap[2]) <a href="#L-405"></a> end <a href="#L-406"></a> end <a href="#L-407"></a> if code.field == 'year' then <a href="#L-408"></a> local sign = (era_text[eraopt] or {}).sign <a href="#L-409"></a> if not sign or format:find('%{era}', 1, true) then <a href="#L-410"></a> sign = '' <a href="#L-411"></a> if value <= 0 then <a href="#L-412"></a> value = 1 - value <a href="#L-413"></a> end <a href="#L-414"></a> else <a href="#L-415"></a> if value >= 0 then <a href="#L-416"></a> sign = '' <a href="#L-417"></a> else <a href="#L-418"></a> value = -value <a href="#L-419"></a> end <a href="#L-420"></a> end <a href="#L-421"></a> return spaces .. sign .. sformat(fmt, value) <a href="#L-422"></a> end <a href="#L-423"></a> return spaces .. (fmt and sformat(fmt, value) or value) <a href="#L-424"></a> end <a href="#L-425"></a> end <a href="#L-426"></a> local function replace_property(spaces, id) <a href="#L-427"></a> if id == 'era' then <a href="#L-428"></a> -- Special case so can use local era option. <a href="#L-429"></a> local result = get_era_for_year(eraopt, date.year) <a href="#L-430"></a> if result == '' then <a href="#L-431"></a> return '' <a href="#L-432"></a> end <a href="#L-433"></a> return (spaces == '' and '' or '&nbsp;') .. result <a href="#L-434"></a> end <a href="#L-435"></a> local result = date[id] <a href="#L-436"></a> if type(result) == 'string' then <a href="#L-437"></a> return spaces .. result <a href="#L-438"></a> end <a href="#L-439"></a> if type(result) == 'number' then <a href="#L-440"></a> return spaces .. tostring(result) <a href="#L-441"></a> end <a href="#L-442"></a> if type(result) == 'boolean' then <a href="#L-443"></a> return spaces .. (result and '1' or '0') <a href="#L-444"></a> end <a href="#L-445"></a> -- This occurs if id is an undefined field in a partial date, or is the name of a function. <a href="#L-446"></a> return nil <a href="#L-447"></a> end <a href="#L-448"></a> local PERCENT = '\127PERCENT\127' <a href="#L-449"></a> return (format <a href="#L-450"></a> :gsub('%%%%', PERCENT) <a href="#L-451"></a> :gsub('(%s*)%%{(%w+)}', replace_property) <a href="#L-452"></a> :gsub('(%s*)%%(%-?)(%a)', replace_code) <a href="#L-453"></a> :gsub(PERCENT, '%%') <a href="#L-454"></a> ) <a href="#L-455"></a>end <a href="#L-456"></a> <a href="#L-457"></a>local function _date_text(date, fmt, options) <a href="#L-458"></a> -- Return a formatted string representing the given date. <a href="#L-459"></a> if not is_date(date) then <a href="#L-460"></a> error('date:text: need a date (use "date:text()" with a colon)', 2) <a href="#L-461"></a> end <a href="#L-462"></a> if type(fmt) == 'string' and fmt:match('%S') then <a href="#L-463"></a> if fmt:find('%', 1, true) then <a href="#L-464"></a> return strftime(date, fmt, options) <a href="#L-465"></a> end <a href="#L-466"></a> elseif date.partial then <a href="#L-467"></a> fmt = date.month and 'my' or 'y' <a href="#L-468"></a> else <a href="#L-469"></a> fmt = 'dmy' <a href="#L-470"></a> if date.hastime then <a href="#L-471"></a> fmt = (date.second > 0 and 'hms ' or 'hm ') .. fmt <a href="#L-472"></a> end <a href="#L-473"></a> end <a href="#L-474"></a> local function bad_format() <a href="#L-475"></a> -- For consistency with other format processing, return given format <a href="#L-476"></a> -- (or cleaned format if original was not a string) if invalid. <a href="#L-477"></a> return mw.text.nowiki(fmt) <a href="#L-478"></a> end <a href="#L-479"></a> if date.partial then <a href="#L-480"></a> -- Ignore days in standard formats like 'ymd'. <a href="#L-481"></a> if fmt == 'ym' or fmt == 'ymd' then <a href="#L-482"></a> fmt = date.month and '%Y-%m %{era}' or '%Y %{era}' <a href="#L-483"></a> elseif fmt == 'my' or fmt == 'dmy' or fmt == 'mdy' then <a href="#L-484"></a> fmt = date.month and '%B %-Y %{era}' or '%-Y %{era}' <a href="#L-485"></a> elseif fmt == 'y' then <a href="#L-486"></a> fmt = date.month and '%-Y %{era}' or '%-Y %{era}' <a href="#L-487"></a> else <a href="#L-488"></a> return bad_format() <a href="#L-489"></a> end <a href="#L-490"></a> return strftime(date, fmt, options) <a href="#L-491"></a> end <a href="#L-492"></a> local function hm_fmt() <a href="#L-493"></a> local plain = make_option_table(options, date.options).bydefault.am <a href="#L-494"></a> return plain and '%H:%M' or '%-I:%M %p' <a href="#L-495"></a> end <a href="#L-496"></a> local need_time = date.hastime <a href="#L-497"></a> local t = collection() <a href="#L-498"></a> for item in fmt:gmatch('%S+') do <a href="#L-499"></a> local f <a href="#L-500"></a> if item == 'hm' then <a href="#L-501"></a> f = hm_fmt() <a href="#L-502"></a> need_time = false <a href="#L-503"></a> elseif item == 'hms' then <a href="#L-504"></a> f = '%H:%M:%S' <a href="#L-505"></a> need_time = false <a href="#L-506"></a> elseif item == 'ymd' then <a href="#L-507"></a> f = '%Y-%m-%d %{era}' <a href="#L-508"></a> elseif item == 'mdy' then <a href="#L-509"></a> f = '%B %-d, %-Y %{era}' <a href="#L-510"></a> elseif item == 'dmy' then <a href="#L-511"></a> f = '%-d %B %-Y %{era}' <a href="#L-512"></a> else <a href="#L-513"></a> return bad_format() <a href="#L-514"></a> end <a href="#L-515"></a> t:add(f) <a href="#L-516"></a> end <a href="#L-517"></a> fmt = t:join(' ') <a href="#L-518"></a> if need_time then <a href="#L-519"></a> fmt = hm_fmt() .. ' ' .. fmt <a href="#L-520"></a> end <a href="#L-521"></a> return strftime(date, fmt, options) <a href="#L-522"></a>end <a href="#L-523"></a> <a href="#L-524"></a>local day_info = { <a href="#L-525"></a> -- 0=Sun to 6=Sat <a href="#L-526"></a> [0] = { 'Sun', 'Sunday' }, <a href="#L-527"></a> { 'Mon', 'Monday' }, <a href="#L-528"></a> { 'Tue', 'Tuesday' }, <a href="#L-529"></a> { 'Wed', 'Wednesday' }, <a href="#L-530"></a> { 'Thu', 'Thursday' }, <a href="#L-531"></a> { 'Fri', 'Friday' }, <a href="#L-532"></a> { 'Sat', 'Saturday' }, <a href="#L-533"></a>} <a href="#L-534"></a> <a href="#L-535"></a>local month_info = { <a href="#L-536"></a> -- 1=Jan to 12=Dec <a href="#L-537"></a> { 'Jan', 'January' }, <a href="#L-538"></a> { 'Feb', 'February' }, <a href="#L-539"></a> { 'Mar', 'March' }, <a href="#L-540"></a> { 'Apr', 'April' }, <a href="#L-541"></a> { 'May', 'May' }, <a href="#L-542"></a> { 'Jun', 'June' }, <a href="#L-543"></a> { 'Jul', 'July' }, <a href="#L-544"></a> { 'Aug', 'August' }, <a href="#L-545"></a> { 'Sep', 'September' }, <a href="#L-546"></a> { 'Oct', 'October' }, <a href="#L-547"></a> { 'Nov', 'November' }, <a href="#L-548"></a> { 'Dec', 'December' }, <a href="#L-549"></a>} <a href="#L-550"></a> <a href="#L-551"></a>local function name_to_number(text, translate) <a href="#L-552"></a> if type(text) == 'string' then <a href="#L-553"></a> return translate[text:lower()] <a href="#L-554"></a> end <a href="#L-555"></a>end <a href="#L-556"></a> <a href="#L-557"></a>local function day_number(text) <a href="#L-558"></a> return name_to_number(text, { <a href="#L-559"></a> sun = 0, sunday = 0, <a href="#L-560"></a> mon = 1, monday = 1, <a href="#L-561"></a> tue = 2, tuesday = 2, <a href="#L-562"></a> wed = 3, wednesday = 3, <a href="#L-563"></a> thu = 4, thursday = 4, <a href="#L-564"></a> fri = 5, friday = 5, <a href="#L-565"></a> sat = 6, saturday = 6, <a href="#L-566"></a> }) <a href="#L-567"></a>end <a href="#L-568"></a> <a href="#L-569"></a>local function month_number(text) <a href="#L-570"></a> return name_to_number(text, { <a href="#L-571"></a> jan = 1, january = 1, <a href="#L-572"></a> feb = 2, february = 2, <a href="#L-573"></a> mar = 3, march = 3, <a href="#L-574"></a> apr = 4, april = 4, <a href="#L-575"></a> may = 5, <a href="#L-576"></a> jun = 6, june = 6, <a href="#L-577"></a> jul = 7, july = 7, <a href="#L-578"></a> aug = 8, august = 8, <a href="#L-579"></a> sep = 9, september = 9, sept = 9, <a href="#L-580"></a> oct = 10, october = 10, <a href="#L-581"></a> nov = 11, november = 11, <a href="#L-582"></a> dec = 12, december = 12, <a href="#L-583"></a> }) <a href="#L-584"></a>end <a href="#L-585"></a> <a href="#L-586"></a>local function _list_text(list, fmt) <a href="#L-587"></a> -- Return a list of formatted strings from a list of dates. <a href="#L-588"></a> if not type(list) == 'table' then <a href="#L-589"></a> error('date:list:text: need "list:text()" with a colon', 2) <a href="#L-590"></a> end <a href="#L-591"></a> local result = { join = _list_join } <a href="#L-592"></a> for i, date in ipairs(list) do <a href="#L-593"></a> result[i] = date:text(fmt) <a href="#L-594"></a> end <a href="#L-595"></a> return result <a href="#L-596"></a>end <a href="#L-597"></a> <a href="#L-598"></a>local function _date_list(date, spec) <a href="#L-599"></a> -- Return a possibly empty numbered table of dates meeting the specification. <a href="#L-600"></a> -- Dates in the list are in ascending order (oldest date first). <a href="#L-601"></a> -- The spec should be a string of form "<count> <day> <op>" <a href="#L-602"></a> -- where each item is optional and <a href="#L-603"></a> -- count = number of items wanted in list <a href="#L-604"></a> -- day = abbreviation or name such as Mon or Monday <a href="#L-605"></a> -- op = >, >=, <, <= (default is > meaning after date) <a href="#L-606"></a> -- If no count is given, the list is for the specified days in date's month. <a href="#L-607"></a> -- The default day is date's day. <a href="#L-608"></a> -- The spec can also be a positive or negative number: <a href="#L-609"></a> -- -5 is equivalent to '5 <' <a href="#L-610"></a> -- 5 is equivalent to '5' which is '5 >' <a href="#L-611"></a> if not is_date(date) then <a href="#L-612"></a> error('date:list: need a date (use "date:list()" with a colon)', 2) <a href="#L-613"></a> end <a href="#L-614"></a> local list = { text = _list_text } <a href="#L-615"></a> if date.partial then <a href="#L-616"></a> return list <a href="#L-617"></a> end <a href="#L-618"></a> local count, offset, operation <a href="#L-619"></a> local ops = { <a href="#L-620"></a> ['>='] = { before = false, include = true }, <a href="#L-621"></a> ['>'] = { before = false, include = false }, <a href="#L-622"></a> ['<='] = { before = true , include = true }, <a href="#L-623"></a> ['<'] = { before = true , include = false }, <a href="#L-624"></a> } <a href="#L-625"></a> if spec then <a href="#L-626"></a> if type(spec) == 'number' then <a href="#L-627"></a> count = floor(spec + 0.5) <a href="#L-628"></a> if count < 0 then <a href="#L-629"></a> count = -count <a href="#L-630"></a> operation = ops['<'] <a href="#L-631"></a> end <a href="#L-632"></a> elseif type(spec) == 'string' then <a href="#L-633"></a> local num, day, op = spec:match('^%s*(%d*)%s*(%a*)%s*([<>=]*)%s*$') <a href="#L-634"></a> if not num then <a href="#L-635"></a> return list <a href="#L-636"></a> end <a href="#L-637"></a> if num ~= '' then <a href="#L-638"></a> count = tonumber(num) <a href="#L-639"></a> end <a href="#L-640"></a> if day ~= '' then <a href="#L-641"></a> local dow = day_number(day:gsub('[sS]$', '')) -- accept plural days <a href="#L-642"></a> if not dow then <a href="#L-643"></a> return list <a href="#L-644"></a> end <a href="#L-645"></a> offset = dow - date.dow <a href="#L-646"></a> end <a href="#L-647"></a> operation = ops[op] <a href="#L-648"></a> else <a href="#L-649"></a> return list <a href="#L-650"></a> end <a href="#L-651"></a> end <a href="#L-652"></a> offset = offset or 0 <a href="#L-653"></a> operation = operation or ops['>'] <a href="#L-654"></a> local datefrom, dayfirst, daylast <a href="#L-655"></a> if operation.before then <a href="#L-656"></a> if offset > 0 or (offset == 0 and not operation.include) then <a href="#L-657"></a> offset = offset - 7 <a href="#L-658"></a> end <a href="#L-659"></a> if count then <a href="#L-660"></a> if count > 1 then <a href="#L-661"></a> offset = offset - 7*(count - 1) <a href="#L-662"></a> end <a href="#L-663"></a> datefrom = date + offset <a href="#L-664"></a> else <a href="#L-665"></a> daylast = date.day + offset <a href="#L-666"></a> dayfirst = daylast % 7 <a href="#L-667"></a> if dayfirst == 0 then <a href="#L-668"></a> dayfirst = 7 <a href="#L-669"></a> end <a href="#L-670"></a> end <a href="#L-671"></a> else <a href="#L-672"></a> if offset < 0 or (offset == 0 and not operation.include) then <a href="#L-673"></a> offset = offset + 7 <a href="#L-674"></a> end <a href="#L-675"></a> if count then <a href="#L-676"></a> datefrom = date + offset <a href="#L-677"></a> else <a href="#L-678"></a> dayfirst = date.day + offset <a href="#L-679"></a> daylast = date.monthdays <a href="#L-680"></a> end <a href="#L-681"></a> end <a href="#L-682"></a> if not count then <a href="#L-683"></a> if daylast < dayfirst then <a href="#L-684"></a> return list <a href="#L-685"></a> end <a href="#L-686"></a> count = floor((daylast - dayfirst)/7) + 1 <a href="#L-687"></a> datefrom = Date(date, {day = dayfirst}) <a href="#L-688"></a> end <a href="#L-689"></a> for i = 1, count do <a href="#L-690"></a> if not datefrom then break end -- exceeds date limits <a href="#L-691"></a> list[i] = datefrom <a href="#L-692"></a> datefrom = datefrom + 7 <a href="#L-693"></a> end <a href="#L-694"></a> return list <a href="#L-695"></a>end <a href="#L-696"></a> <a href="#L-697"></a>-- A table to get the current date/time (UTC), but only if needed. <a href="#L-698"></a>local current = setmetatable({}, { <a href="#L-699"></a> __index = function (self, key) <a href="#L-700"></a> local d = os.date('!*t') <a href="#L-701"></a> self.year = d.year <a href="#L-702"></a> self.month = d.month <a href="#L-703"></a> self.day = d.day <a href="#L-704"></a> self.hour = d.hour <a href="#L-705"></a> self.minute = d.min <a href="#L-706"></a> self.second = d.sec <a href="#L-707"></a> return rawget(self, key) <a href="#L-708"></a> end }) <a href="#L-709"></a> <a href="#L-710"></a>local function extract_date(newdate, text) <a href="#L-711"></a> -- Parse the date/time in text and return n, o where <a href="#L-712"></a> -- n = table of numbers with date/time fields <a href="#L-713"></a> -- o = table of options for AM/PM or AD/BC or format, if any <a href="#L-714"></a> -- or return nothing if date is known to be invalid. <a href="#L-715"></a> -- Caller determines if the values in n are valid. <a href="#L-716"></a> -- A year must be positive ('1' to '9999'); use 'BC' for BC. <a href="#L-717"></a> -- In a y-m-d string, the year must be four digits to avoid ambiguity <a href="#L-718"></a> -- ('0001' to '9999'). The only way to enter year <= 0 is by specifying <a href="#L-719"></a> -- the date as three numeric parameters like ymd Date(-1, 1, 1). <a href="#L-720"></a> -- Dates of form d/m/y, m/d/y, y/m/d are rejected as potentially ambiguous. <a href="#L-721"></a> local date, options = {}, {} <a href="#L-722"></a> if text:sub(-1) == 'Z' then <a href="#L-723"></a> -- Extract date/time from a Wikidata timestamp. <a href="#L-724"></a> -- The year can be 1 to 16 digits but this module handles 1 to 4 digits only. <a href="#L-725"></a> -- Examples: '+2016-06-21T14:30:00Z', '-0000000180-00-00T00:00:00Z'. <a href="#L-726"></a> local sign, y, m, d, H, M, S = text:match('^([+%-])(%d+)%-(%d%d)%-(%d%d)T(%d%d):(%d%d):(%d%d)Z$') <a href="#L-727"></a> if sign then <a href="#L-728"></a> y = tonumber(y) <a href="#L-729"></a> if sign == '-' and y > 0 then <a href="#L-730"></a> y = -y <a href="#L-731"></a> end <a href="#L-732"></a> if y <= 0 then <a href="#L-733"></a> options.era = 'BCE' <a href="#L-734"></a> end <a href="#L-735"></a> date.year = y <a href="#L-736"></a> m = tonumber(m) <a href="#L-737"></a> d = tonumber(d) <a href="#L-738"></a> H = tonumber(H) <a href="#L-739"></a> M = tonumber(M) <a href="#L-740"></a> S = tonumber(S) <a href="#L-741"></a> if m == 0 then <a href="#L-742"></a> newdate.partial = true <a href="#L-743"></a> return date, options <a href="#L-744"></a> end <a href="#L-745"></a> date.month = m <a href="#L-746"></a> if d == 0 then <a href="#L-747"></a> newdate.partial = true <a href="#L-748"></a> return date, options <a href="#L-749"></a> end <a href="#L-750"></a> date.day = d <a href="#L-751"></a> if H > 0 or M > 0 or S > 0 then <a href="#L-752"></a> date.hour = H <a href="#L-753"></a> date.minute = M <a href="#L-754"></a> date.second = S <a href="#L-755"></a> end <a href="#L-756"></a> return date, options <a href="#L-757"></a> end <a href="#L-758"></a> return <a href="#L-759"></a> end <a href="#L-760"></a> local function extract_ymd(item) <a href="#L-761"></a> -- Called when no day or month has been set. <a href="#L-762"></a> local y, m, d = item:match('^(%d%d%d%d)%-(%w+)%-(%d%d?)$') <a href="#L-763"></a> if y then <a href="#L-764"></a> if date.year then <a href="#L-765"></a> return <a href="#L-766"></a> end <a href="#L-767"></a> if m:match('^%d%d?$') then <a href="#L-768"></a> m = tonumber(m) <a href="#L-769"></a> else <a href="#L-770"></a> m = month_number(m) <a href="#L-771"></a> end <a href="#L-772"></a> if m then <a href="#L-773"></a> date.year = tonumber(y) <a href="#L-774"></a> date.month = m <a href="#L-775"></a> date.day = tonumber(d) <a href="#L-776"></a> return true <a href="#L-777"></a> end <a href="#L-778"></a> end <a href="#L-779"></a> end <a href="#L-780"></a> local function extract_day_or_year(item) <a href="#L-781"></a> -- Called when a day would be valid, or <a href="#L-782"></a> -- when a year would be valid if no year has been set and partial is set. <a href="#L-783"></a> local number, suffix = item:match('^(%d%d?%d?%d?)(.*)$') <a href="#L-784"></a> if number then <a href="#L-785"></a> local n = tonumber(number) <a href="#L-786"></a> if #number <= 2 and n <= 31 then <a href="#L-787"></a> suffix = suffix:lower() <a href="#L-788"></a> if suffix == '' or suffix == 'st' or suffix == 'nd' or suffix == 'rd' or suffix == 'th' then <a href="#L-789"></a> date.day = n <a href="#L-790"></a> return true <a href="#L-791"></a> end <a href="#L-792"></a> elseif suffix == '' and newdate.partial and not date.year then <a href="#L-793"></a> date.year = n <a href="#L-794"></a> return true <a href="#L-795"></a> end <a href="#L-796"></a> end <a href="#L-797"></a> end <a href="#L-798"></a> local function extract_month(item) <a href="#L-799"></a> -- A month must be given as a name or abbreviation; a number could be ambiguous. <a href="#L-800"></a> local m = month_number(item) <a href="#L-801"></a> if m then <a href="#L-802"></a> date.month = m <a href="#L-803"></a> return true <a href="#L-804"></a> end <a href="#L-805"></a> end <a href="#L-806"></a> local function extract_time(item) <a href="#L-807"></a> local h, m, s = item:match('^(%d%d?):(%d%d)(:?%d*)$') <a href="#L-808"></a> if date.hour or not h then <a href="#L-809"></a> return <a href="#L-810"></a> end <a href="#L-811"></a> if s ~= '' then <a href="#L-812"></a> s = s:match('^:(%d%d)$') <a href="#L-813"></a> if not s then <a href="#L-814"></a> return <a href="#L-815"></a> end <a href="#L-816"></a> end <a href="#L-817"></a> date.hour = tonumber(h) <a href="#L-818"></a> date.minute = tonumber(m) <a href="#L-819"></a> date.second = tonumber(s) -- nil if empty string <a href="#L-820"></a> return true <a href="#L-821"></a> end <a href="#L-822"></a> local item_count = 0 <a href="#L-823"></a> local index_time <a href="#L-824"></a> local function set_ampm(item) <a href="#L-825"></a> local H = date.hour <a href="#L-826"></a> if H and not options.am and index_time + 1 == item_count then <a href="#L-827"></a> options.am = ampm_options[item] -- caller checked this is not nil <a href="#L-828"></a> if item:match('^[Aa]') then <a href="#L-829"></a> if not (1 <= H and H <= 12) then <a href="#L-830"></a> return <a href="#L-831"></a> end <a href="#L-832"></a> if H == 12 then <a href="#L-833"></a> date.hour = 0 <a href="#L-834"></a> end <a href="#L-835"></a> else <a href="#L-836"></a> if not (1 <= H and H <= 23) then <a href="#L-837"></a> return <a href="#L-838"></a> end <a href="#L-839"></a> if H <= 11 then <a href="#L-840"></a> date.hour = H + 12 <a href="#L-841"></a> end <a href="#L-842"></a> end <a href="#L-843"></a> return true <a href="#L-844"></a> end <a href="#L-845"></a> end <a href="#L-846"></a> for item in text:gsub(',', ' '):gsub('&nbsp;', ' '):gmatch('%S+') do <a href="#L-847"></a> item_count = item_count + 1 <a href="#L-848"></a> if era_text[item] then <a href="#L-849"></a> -- Era is accepted in peculiar places. <a href="#L-850"></a> if options.era then <a href="#L-851"></a> return <a href="#L-852"></a> end <a href="#L-853"></a> options.era = item <a href="#L-854"></a> elseif ampm_options[item] then <a href="#L-855"></a> if not set_ampm(item) then <a href="#L-856"></a> return <a href="#L-857"></a> end <a href="#L-858"></a> elseif item:find(':', 1, true) then <a href="#L-859"></a> if not extract_time(item) then <a href="#L-860"></a> return <a href="#L-861"></a> end <a href="#L-862"></a> index_time = item_count <a href="#L-863"></a> elseif date.day and date.month then <a href="#L-864"></a> if date.year then <a href="#L-865"></a> return -- should be nothing more so item is invalid <a href="#L-866"></a> end <a href="#L-867"></a> if not item:match('^(%d%d?%d?%d?)$') then <a href="#L-868"></a> return <a href="#L-869"></a> end <a href="#L-870"></a> date.year = tonumber(item) <a href="#L-871"></a> elseif date.day then <a href="#L-872"></a> if not extract_month(item) then <a href="#L-873"></a> return <a href="#L-874"></a> end <a href="#L-875"></a> elseif date.month then <a href="#L-876"></a> if not extract_day_or_year(item) then <a href="#L-877"></a> return <a href="#L-878"></a> end <a href="#L-879"></a> elseif extract_month(item) then <a href="#L-880"></a> options.format = 'mdy' <a href="#L-881"></a> elseif extract_ymd(item) then <a href="#L-882"></a> options.format = 'ymd' <a href="#L-883"></a> elseif extract_day_or_year(item) then <a href="#L-884"></a> if date.day then <a href="#L-885"></a> options.format = 'dmy' <a href="#L-886"></a> end <a href="#L-887"></a> else <a href="#L-888"></a> return <a href="#L-889"></a> end <a href="#L-890"></a> end <a href="#L-891"></a> if not date.year or date.year == 0 then <a href="#L-892"></a> return <a href="#L-893"></a> end <a href="#L-894"></a> local era = era_text[options.era] <a href="#L-895"></a> if era and era.isbc then <a href="#L-896"></a> date.year = 1 - date.year <a href="#L-897"></a> end <a href="#L-898"></a> return date, options <a href="#L-899"></a>end <a href="#L-900"></a> <a href="#L-901"></a>local function autofill(date1, date2) <a href="#L-902"></a> -- Fill any missing month or day in each date using the <a href="#L-903"></a> -- corresponding component from the other date, if present, <a href="#L-904"></a> -- or with 1 if both dates are missing the month or day. <a href="#L-905"></a> -- This gives a good result for calculating the difference <a href="#L-906"></a> -- between two partial dates when no range is wanted. <a href="#L-907"></a> -- Return filled date1, date2 (two full dates). <a href="#L-908"></a> local function filled(a, b) <a href="#L-909"></a> -- Return date a filled, if necessary, with month and/or day from date b. <a href="#L-910"></a> -- The filled day is truncated to fit the number of days in the month. <a href="#L-911"></a> local fillmonth, fillday <a href="#L-912"></a> if not a.month then <a href="#L-913"></a> fillmonth = b.month or 1 <a href="#L-914"></a> end <a href="#L-915"></a> if not a.day then <a href="#L-916"></a> fillday = b.day or 1 <a href="#L-917"></a> end <a href="#L-918"></a> if fillmonth or fillday then -- need to create a new date <a href="#L-919"></a> a = Date(a, { <a href="#L-920"></a> month = fillmonth, <a href="#L-921"></a> day = math.min(fillday or a.day, days_in_month(a.year, fillmonth or a.month, a.calendar)) <a href="#L-922"></a> }) <a href="#L-923"></a> end <a href="#L-924"></a> return a <a href="#L-925"></a> end <a href="#L-926"></a> return filled(date1, date2), filled(date2, date1) <a href="#L-927"></a>end <a href="#L-928"></a> <a href="#L-929"></a>local function date_add_sub(lhs, rhs, is_sub) <a href="#L-930"></a> -- Return a new date from calculating (lhs + rhs) or (lhs - rhs), <a href="#L-931"></a> -- or return nothing if invalid. <a href="#L-932"></a> -- The result is nil if the calculated date exceeds allowable limits. <a href="#L-933"></a> -- Caller ensures that lhs is a date; its properties are copied for the new date. <a href="#L-934"></a> if lhs.partial then <a href="#L-935"></a> -- Adding to a partial is not supported. <a href="#L-936"></a> -- Can subtract a date or partial from a partial, but this is not called for that. <a href="#L-937"></a> return <a href="#L-938"></a> end <a href="#L-939"></a> local function is_prefix(text, word, minlen) <a href="#L-940"></a> local n = #text <a href="#L-941"></a> return (minlen or 1) <= n and n <= #word and text == word:sub(1, n) <a href="#L-942"></a> end <a href="#L-943"></a> local function do_days(n) <a href="#L-944"></a> local forcetime, jd <a href="#L-945"></a> if floor(n) == n then <a href="#L-946"></a> jd = lhs.jd <a href="#L-947"></a> else <a href="#L-948"></a> forcetime = not lhs.hastime <a href="#L-949"></a> jd = lhs.jdz <a href="#L-950"></a> end <a href="#L-951"></a> jd = jd + (is_sub and -n or n) <a href="#L-952"></a> if forcetime then <a href="#L-953"></a> jd = tostring(jd) <a href="#L-954"></a> if not jd:find('.', 1, true) then <a href="#L-955"></a> jd = jd .. '.0' <a href="#L-956"></a> end <a href="#L-957"></a> end <a href="#L-958"></a> return Date(lhs, 'juliandate', jd) <a href="#L-959"></a> end <a href="#L-960"></a> if type(rhs) == 'number' then <a href="#L-961"></a> -- Add/subtract days, including fractional days. <a href="#L-962"></a> return do_days(rhs) <a href="#L-963"></a> end <a href="#L-964"></a> if type(rhs) == 'string' then <a href="#L-965"></a> -- rhs is a single component like '26m' or '26 months' (with optional sign). <a href="#L-966"></a> -- Fractions like '3.25d' are accepted for the units which are handled as days. <a href="#L-967"></a> local sign, numstr, id = rhs:match('^%s*([+-]?)([%d%.]+)%s*(%a+)$') <a href="#L-968"></a> if sign then <a href="#L-969"></a> if sign == '-' then <a href="#L-970"></a> is_sub = not (is_sub and true or false) <a href="#L-971"></a> end <a href="#L-972"></a> local y, m, days <a href="#L-973"></a> local num = tonumber(numstr) <a href="#L-974"></a> if not num then <a href="#L-975"></a> return <a href="#L-976"></a> end <a href="#L-977"></a> id = id:lower() <a href="#L-978"></a> if is_prefix(id, 'years') then <a href="#L-979"></a> y = num <a href="#L-980"></a> m = 0 <a href="#L-981"></a> elseif is_prefix(id, 'months') then <a href="#L-982"></a> y = floor(num / 12) <a href="#L-983"></a> m = num % 12 <a href="#L-984"></a> elseif is_prefix(id, 'weeks') then <a href="#L-985"></a> days = num * 7 <a href="#L-986"></a> elseif is_prefix(id, 'days') then <a href="#L-987"></a> days = num <a href="#L-988"></a> elseif is_prefix(id, 'hours') then <a href="#L-989"></a> days = num / 24 <a href="#L-990"></a> elseif is_prefix(id, 'minutes', 3) then <a href="#L-991"></a> days = num / (24 * 60) <a href="#L-992"></a> elseif is_prefix(id, 'seconds') then <a href="#L-993"></a> days = num / (24 * 3600) <a href="#L-994"></a> else <a href="#L-995"></a> return <a href="#L-996"></a> end <a href="#L-997"></a> if days then <a href="#L-998"></a> return do_days(days) <a href="#L-999"></a> end <a href="#L-1000"></a> if numstr:find('.', 1, true) then <a href="#L-1001"></a> return <a href="#L-1002"></a> end <a href="#L-1003"></a> if is_sub then <a href="#L-1004"></a> y = -y <a href="#L-1005"></a> m = -m <a href="#L-1006"></a> end <a href="#L-1007"></a> assert(-11 <= m and m <= 11) <a href="#L-1008"></a> y = lhs.year + y <a href="#L-1009"></a> m = lhs.month + m <a href="#L-1010"></a> if m > 12 then <a href="#L-1011"></a> y = y + 1 <a href="#L-1012"></a> m = m - 12 <a href="#L-1013"></a> elseif m < 1 then <a href="#L-1014"></a> y = y - 1 <a href="#L-1015"></a> m = m + 12 <a href="#L-1016"></a> end <a href="#L-1017"></a> local d = math.min(lhs.day, days_in_month(y, m, lhs.calendar)) <a href="#L-1018"></a> return Date(lhs, y, m, d) <a href="#L-1019"></a> end <a href="#L-1020"></a> end <a href="#L-1021"></a> if is_diff(rhs) then <a href="#L-1022"></a> local days = rhs.age_days <a href="#L-1023"></a> if (is_sub or false) ~= (rhs.isnegative or false) then <a href="#L-1024"></a> days = -days <a href="#L-1025"></a> end <a href="#L-1026"></a> return lhs + days <a href="#L-1027"></a> end <a href="#L-1028"></a>end <a href="#L-1029"></a> <a href="#L-1030"></a>local full_date_only = { <a href="#L-1031"></a> dayabbr = true, <a href="#L-1032"></a> dayname = true, <a href="#L-1033"></a> dow = true, <a href="#L-1034"></a> dayofweek = true, <a href="#L-1035"></a> dowiso = true, <a href="#L-1036"></a> dayofweekiso = true, <a href="#L-1037"></a> dayofyear = true, <a href="#L-1038"></a> gsd = true, <a href="#L-1039"></a> juliandate = true, <a href="#L-1040"></a> jd = true, <a href="#L-1041"></a> jdz = true, <a href="#L-1042"></a> jdnoon = true, <a href="#L-1043"></a>} <a href="#L-1044"></a> <a href="#L-1045"></a>-- Metatable for a date's calculated fields. <a href="#L-1046"></a>local datemt = { <a href="#L-1047"></a> __index = function (self, key) <a href="#L-1048"></a> if rawget(self, 'partial') then <a href="#L-1049"></a> if full_date_only[key] then return end <a href="#L-1050"></a> if key == 'monthabbr' or key == 'monthdays' or key == 'monthname' then <a href="#L-1051"></a> if not self.month then return end <a href="#L-1052"></a> end <a href="#L-1053"></a> end <a href="#L-1054"></a> local value <a href="#L-1055"></a> if key == 'dayabbr' then <a href="#L-1056"></a> value = day_info[self.dow][1] <a href="#L-1057"></a> elseif key == 'dayname' then <a href="#L-1058"></a> value = day_info[self.dow][2] <a href="#L-1059"></a> elseif key == 'dow' then <a href="#L-1060"></a> value = (self.jdnoon + 1) % 7 -- day-of-week 0=Sun to 6=Sat <a href="#L-1061"></a> elseif key == 'dayofweek' then <a href="#L-1062"></a> value = self.dow <a href="#L-1063"></a> elseif key == 'dowiso' then <a href="#L-1064"></a> value = (self.jdnoon % 7) + 1 -- ISO day-of-week 1=Mon to 7=Sun <a href="#L-1065"></a> elseif key == 'dayofweekiso' then <a href="#L-1066"></a> value = self.dowiso <a href="#L-1067"></a> elseif key == 'dayofyear' then <a href="#L-1068"></a> local first = Date(self.year, 1, 1, self.calendar).jdnoon <a href="#L-1069"></a> value = self.jdnoon - first + 1 -- day-of-year 1 to 366 <a href="#L-1070"></a> elseif key == 'era' then <a href="#L-1071"></a> -- Era text (never a negative sign) from year and options. <a href="#L-1072"></a> value = get_era_for_year(self.options.era, self.year) <a href="#L-1073"></a> elseif key == 'format' then <a href="#L-1074"></a> value = self.options.format or 'dmy' <a href="#L-1075"></a> elseif key == 'gsd' then <a href="#L-1076"></a> -- GSD = 1 from 00:00:00 to 23:59:59 on 1 January 1 AD Gregorian calendar, <a href="#L-1077"></a> -- which is from jd 1721425.5 to 1721426.49999. <a href="#L-1078"></a> value = floor(self.jd - 1721424.5) <a href="#L-1079"></a> elseif key == 'juliandate' or key == 'jd' or key == 'jdz' then <a href="#L-1080"></a> local jd, jdz = julian_date(self) <a href="#L-1081"></a> rawset(self, 'juliandate', jd) <a href="#L-1082"></a> rawset(self, 'jd', jd) <a href="#L-1083"></a> rawset(self, 'jdz', jdz) <a href="#L-1084"></a> return key == 'jdz' and jdz or jd <a href="#L-1085"></a> elseif key == 'jdnoon' then <a href="#L-1086"></a> -- Julian date at noon (an integer) on the calendar day when jd occurs. <a href="#L-1087"></a> value = floor(self.jd + 0.5) <a href="#L-1088"></a> elseif key == 'isleapyear' then <a href="#L-1089"></a> value = is_leap_year(self.year, self.calendar) <a href="#L-1090"></a> elseif key == 'monthabbr' then <a href="#L-1091"></a> value = month_info[self.month][1] <a href="#L-1092"></a> elseif key == 'monthdays' then <a href="#L-1093"></a> value = days_in_month(self.year, self.month, self.calendar) <a href="#L-1094"></a> elseif key == 'monthname' then <a href="#L-1095"></a> value = month_info[self.month][2] <a href="#L-1096"></a> end <a href="#L-1097"></a> if value ~= nil then <a href="#L-1098"></a> rawset(self, key, value) <a href="#L-1099"></a> return value <a href="#L-1100"></a> end <a href="#L-1101"></a> end, <a href="#L-1102"></a>} <a href="#L-1103"></a> <a href="#L-1104"></a>-- Date operators. <a href="#L-1105"></a>local function mt_date_add(lhs, rhs) <a href="#L-1106"></a> if not is_date(lhs) then <a href="#L-1107"></a> lhs, rhs = rhs, lhs -- put date on left (it must be a date for this to have been called) <a href="#L-1108"></a> end <a href="#L-1109"></a> return date_add_sub(lhs, rhs) <a href="#L-1110"></a>end <a href="#L-1111"></a> <a href="#L-1112"></a>local function mt_date_sub(lhs, rhs) <a href="#L-1113"></a> if is_date(lhs) then <a href="#L-1114"></a> if is_date(rhs) then <a href="#L-1115"></a> return DateDiff(lhs, rhs) <a href="#L-1116"></a> end <a href="#L-1117"></a> return date_add_sub(lhs, rhs, true) <a href="#L-1118"></a> end <a href="#L-1119"></a>end <a href="#L-1120"></a> <a href="#L-1121"></a>local function mt_date_concat(lhs, rhs) <a href="#L-1122"></a> return tostring(lhs) .. tostring(rhs) <a href="#L-1123"></a>end <a href="#L-1124"></a> <a href="#L-1125"></a>local function mt_date_tostring(self) <a href="#L-1126"></a> return self:text() <a href="#L-1127"></a>end <a href="#L-1128"></a> <a href="#L-1129"></a>local function mt_date_eq(lhs, rhs) <a href="#L-1130"></a> -- Return true if dates identify same date/time where, for example, <a href="#L-1131"></a> -- Date(-4712, 1, 1, 'Julian') == Date(-4713, 11, 24, 'Gregorian') is true. <a href="#L-1132"></a> -- This is called only if lhs and rhs have the same type and the same metamethod. <a href="#L-1133"></a> if lhs.partial or rhs.partial then <a href="#L-1134"></a> -- One date is partial; the other is a partial or a full date. <a href="#L-1135"></a> -- The months may both be nil, but must be the same. <a href="#L-1136"></a> return lhs.year == rhs.year and lhs.month == rhs.month and lhs.calendar == rhs.calendar <a href="#L-1137"></a> end <a href="#L-1138"></a> return lhs.jdz == rhs.jdz <a href="#L-1139"></a>end <a href="#L-1140"></a> <a href="#L-1141"></a>local function mt_date_lt(lhs, rhs) <a href="#L-1142"></a> -- Return true if lhs < rhs, for example, <a href="#L-1143"></a> -- Date('1 Jan 2016') < Date('06:00 1 Jan 2016') is true. <a href="#L-1144"></a> -- This is called only if lhs and rhs have the same type and the same metamethod. <a href="#L-1145"></a> if lhs.partial or rhs.partial then <a href="#L-1146"></a> -- One date is partial; the other is a partial or a full date. <a href="#L-1147"></a> if lhs.calendar ~= rhs.calendar then <a href="#L-1148"></a> return lhs.calendar == 'Julian' <a href="#L-1149"></a> end <a href="#L-1150"></a> if lhs.partial then <a href="#L-1151"></a> lhs = lhs.partial.first <a href="#L-1152"></a> end <a href="#L-1153"></a> if rhs.partial then <a href="#L-1154"></a> rhs = rhs.partial.first <a href="#L-1155"></a> end <a href="#L-1156"></a> end <a href="#L-1157"></a> return lhs.jdz < rhs.jdz <a href="#L-1158"></a>end <a href="#L-1159"></a> <a href="#L-1160"></a>--[[ Examples of syntax to construct a date: <a href="#L-1161"></a>Date(y, m, d, 'julian') default calendar is 'gregorian' <a href="#L-1162"></a>Date(y, m, d, H, M, S, 'julian') <a href="#L-1163"></a>Date('juliandate', jd, 'julian') if jd contains "." text output includes H:M:S <a href="#L-1164"></a>Date('currentdate') <a href="#L-1165"></a>Date('currentdatetime') <a href="#L-1166"></a>Date('1 April 1995', 'julian') parse date from text <a href="#L-1167"></a>Date('1 April 1995 AD', 'julian') using an era sets a flag to do the same for output <a href="#L-1168"></a>Date('04:30:59 1 April 1995', 'julian') <a href="#L-1169"></a>Date(date) copy of an existing date <a href="#L-1170"></a>Date(date, t) same, updated with y,m,d,H,M,S fields from table t <a href="#L-1171"></a>Date(t) date with y,m,d,H,M,S fields from table t <a href="#L-1172"></a>]] <a href="#L-1173"></a>function Date(...) -- for forward declaration above <a href="#L-1174"></a> -- Return a table holding a date assuming a uniform calendar always applies <a href="#L-1175"></a> -- (proleptic Gregorian calendar or proleptic Julian calendar), or <a href="#L-1176"></a> -- return nothing if date is invalid. <a href="#L-1177"></a> -- A partial date has a valid year, however its month may be nil, and <a href="#L-1178"></a> -- its day and time fields are nil. <a href="#L-1179"></a> -- Field partial is set to false (if a full date) or a table (if a partial date). <a href="#L-1180"></a> local calendars = { julian = 'Julian', gregorian = 'Gregorian' } <a href="#L-1181"></a> local newdate = { <a href="#L-1182"></a> _id = uniq, <a href="#L-1183"></a> calendar = 'Gregorian', -- default is Gregorian calendar <a href="#L-1184"></a> hastime = false, -- true if input sets a time <a href="#L-1185"></a> hour = 0, -- always set hour/minute/second so don't have to handle nil <a href="#L-1186"></a> minute = 0, <a href="#L-1187"></a> second = 0, <a href="#L-1188"></a> options = {}, <a href="#L-1189"></a> list = _date_list, <a href="#L-1190"></a> subtract = function (self, rhs, options) <a href="#L-1191"></a> return DateDiff(self, rhs, options) <a href="#L-1192"></a> end, <a href="#L-1193"></a> text = _date_text, <a href="#L-1194"></a> } <a href="#L-1195"></a> local argtype, datetext, is_copy, jd_number, tnums <a href="#L-1196"></a> local numindex = 0 <a href="#L-1197"></a> local numfields = { 'year', 'month', 'day', 'hour', 'minute', 'second' } <a href="#L-1198"></a> local numbers = {} <a href="#L-1199"></a> for _, v in ipairs({...}) do <a href="#L-1200"></a> v = strip_to_nil(v) <a href="#L-1201"></a> local vlower = type(v) == 'string' and v:lower() or nil <a href="#L-1202"></a> if v == nil then <a href="#L-1203"></a> -- Ignore empty arguments after stripping so modules can directly pass template parameters. <a href="#L-1204"></a> elseif calendars[vlower] then <a href="#L-1205"></a> newdate.calendar = calendars[vlower] <a href="#L-1206"></a> elseif vlower == 'partial' then <a href="#L-1207"></a> newdate.partial = true <a href="#L-1208"></a> elseif vlower == 'fix' then <a href="#L-1209"></a> newdate.want_fix = true <a href="#L-1210"></a> elseif is_date(v) then <a href="#L-1211"></a> -- Copy existing date (items can be overridden by other arguments). <a href="#L-1212"></a> if is_copy or tnums then <a href="#L-1213"></a> return <a href="#L-1214"></a> end <a href="#L-1215"></a> is_copy = true <a href="#L-1216"></a> newdate.calendar = v.calendar <a href="#L-1217"></a> newdate.partial = v.partial <a href="#L-1218"></a> newdate.hastime = v.hastime <a href="#L-1219"></a> newdate.options = v.options <a href="#L-1220"></a> newdate.year = v.year <a href="#L-1221"></a> newdate.month = v.month <a href="#L-1222"></a> newdate.day = v.day <a href="#L-1223"></a> newdate.hour = v.hour <a href="#L-1224"></a> newdate.minute = v.minute <a href="#L-1225"></a> newdate.second = v.second <a href="#L-1226"></a> elseif type(v) == 'table' then <a href="#L-1227"></a> if tnums then <a href="#L-1228"></a> return <a href="#L-1229"></a> end <a href="#L-1230"></a> tnums = {} <a href="#L-1231"></a> local tfields = { year=1, month=1, day=1, hour=2, minute=2, second=2 } <a href="#L-1232"></a> for tk, tv in pairs(v) do <a href="#L-1233"></a> if tfields[tk] then <a href="#L-1234"></a> tnums[tk] = tonumber(tv) <a href="#L-1235"></a> end <a href="#L-1236"></a> if tfields[tk] == 2 then <a href="#L-1237"></a> newdate.hastime = true <a href="#L-1238"></a> end <a href="#L-1239"></a> end <a href="#L-1240"></a> else <a href="#L-1241"></a> local num = tonumber(v) <a href="#L-1242"></a> if not num and argtype == 'setdate' and numindex == 1 then <a href="#L-1243"></a> num = month_number(v) <a href="#L-1244"></a> end <a href="#L-1245"></a> if num then <a href="#L-1246"></a> if not argtype then <a href="#L-1247"></a> argtype = 'setdate' <a href="#L-1248"></a> end <a href="#L-1249"></a> if argtype == 'setdate' and numindex < 6 then <a href="#L-1250"></a> numindex = numindex + 1 <a href="#L-1251"></a> numbers[numfields[numindex]] = num <a href="#L-1252"></a> elseif argtype == 'juliandate' and not jd_number then <a href="#L-1253"></a> jd_number = num <a href="#L-1254"></a> if type(v) == 'string' then <a href="#L-1255"></a> if v:find('.', 1, true) then <a href="#L-1256"></a> newdate.hastime = true <a href="#L-1257"></a> end <a href="#L-1258"></a> elseif num ~= floor(num) then <a href="#L-1259"></a> -- The given value was a number. The time will be used <a href="#L-1260"></a> -- if the fractional part is nonzero. <a href="#L-1261"></a> newdate.hastime = true <a href="#L-1262"></a> end <a href="#L-1263"></a> else <a href="#L-1264"></a> return <a href="#L-1265"></a> end <a href="#L-1266"></a> elseif argtype then <a href="#L-1267"></a> return <a href="#L-1268"></a> elseif type(v) == 'string' then <a href="#L-1269"></a> if v == 'currentdate' or v == 'currentdatetime' or v == 'juliandate' then <a href="#L-1270"></a> argtype = v <a href="#L-1271"></a> else <a href="#L-1272"></a> argtype = 'datetext' <a href="#L-1273"></a> datetext = v <a href="#L-1274"></a> end <a href="#L-1275"></a> else <a href="#L-1276"></a> return <a href="#L-1277"></a> end <a href="#L-1278"></a> end <a href="#L-1279"></a> end <a href="#L-1280"></a> if argtype == 'datetext' then <a href="#L-1281"></a> if tnums or not set_date_from_numbers(newdate, extract_date(newdate, datetext)) then <a href="#L-1282"></a> return <a href="#L-1283"></a> end <a href="#L-1284"></a> elseif argtype == 'juliandate' then <a href="#L-1285"></a> newdate.partial = nil <a href="#L-1286"></a> newdate.jd = jd_number <a href="#L-1287"></a> if not set_date_from_jd(newdate) then <a href="#L-1288"></a> return <a href="#L-1289"></a> end <a href="#L-1290"></a> elseif argtype == 'currentdate' or argtype == 'currentdatetime' then <a href="#L-1291"></a> newdate.partial = nil <a href="#L-1292"></a> newdate.year = current.year <a href="#L-1293"></a> newdate.month = current.month <a href="#L-1294"></a> newdate.day = current.day <a href="#L-1295"></a> if argtype == 'currentdatetime' then <a href="#L-1296"></a> newdate.hour = current.hour <a href="#L-1297"></a> newdate.minute = current.minute <a href="#L-1298"></a> newdate.second = current.second <a href="#L-1299"></a> newdate.hastime = true <a href="#L-1300"></a> end <a href="#L-1301"></a> newdate.calendar = 'Gregorian' -- ignore any given calendar name <a href="#L-1302"></a> elseif argtype == 'setdate' then <a href="#L-1303"></a> if tnums or not set_date_from_numbers(newdate, numbers) then <a href="#L-1304"></a> return <a href="#L-1305"></a> end <a href="#L-1306"></a> elseif not (is_copy or tnums) then <a href="#L-1307"></a> return <a href="#L-1308"></a> end <a href="#L-1309"></a> if tnums then <a href="#L-1310"></a> newdate.jd = nil -- force recalculation in case jd was set before changes from tnums <a href="#L-1311"></a> if not set_date_from_numbers(newdate, tnums) then <a href="#L-1312"></a> return <a href="#L-1313"></a> end <a href="#L-1314"></a> end <a href="#L-1315"></a> if newdate.partial then <a href="#L-1316"></a> local year = newdate.year <a href="#L-1317"></a> local month = newdate.month <a href="#L-1318"></a> local first = Date(year, month or 1, 1, newdate.calendar) <a href="#L-1319"></a> month = month or 12 <a href="#L-1320"></a> local last = Date(year, month, days_in_month(year, month), newdate.calendar) <a href="#L-1321"></a> newdate.partial = { first = first, last = last } <a href="#L-1322"></a> else <a href="#L-1323"></a> newdate.partial = false -- avoid index lookup <a href="#L-1324"></a> end <a href="#L-1325"></a> setmetatable(newdate, datemt) <a href="#L-1326"></a> local readonly = {} <a href="#L-1327"></a> local mt = { <a href="#L-1328"></a> __index = newdate, <a href="#L-1329"></a> __newindex = function(t, k, v) error('date.' .. tostring(k) .. ' is read-only', 2) end, <a href="#L-1330"></a> __add = mt_date_add, <a href="#L-1331"></a> __sub = mt_date_sub, <a href="#L-1332"></a> __concat = mt_date_concat, <a href="#L-1333"></a> __tostring = mt_date_tostring, <a href="#L-1334"></a> __eq = mt_date_eq, <a href="#L-1335"></a> __lt = mt_date_lt, <a href="#L-1336"></a> } <a href="#L-1337"></a> return setmetatable(readonly, mt) <a href="#L-1338"></a>end <a href="#L-1339"></a> <a href="#L-1340"></a>local function _diff_age(diff, code, options) <a href="#L-1341"></a> -- Return a tuple of integer values from diff as specified by code, except that <a href="#L-1342"></a> -- each integer may be a list of two integers for a diff with a partial date, or <a href="#L-1343"></a> -- return nil if the code is not supported. <a href="#L-1344"></a> -- If want round, the least significant unit is rounded to nearest whole unit. <a href="#L-1345"></a> -- For a duration, an extra day is added. <a href="#L-1346"></a> local wantround, wantduration, wantrange <a href="#L-1347"></a> if type(options) == 'table' then <a href="#L-1348"></a> wantround = options.round <a href="#L-1349"></a> wantduration = options.duration <a href="#L-1350"></a> wantrange = options.range <a href="#L-1351"></a> else <a href="#L-1352"></a> wantround = options <a href="#L-1353"></a> end <a href="#L-1354"></a> if not is_diff(diff) then <a href="#L-1355"></a> local f = wantduration and 'duration' or 'age' <a href="#L-1356"></a> error(f .. ': need a date difference (use "diff:' .. f .. '()" with a colon)', 2) <a href="#L-1357"></a> end <a href="#L-1358"></a> if diff.partial then <a href="#L-1359"></a> -- Ignore wantround, wantduration. <a href="#L-1360"></a> local function choose(v) <a href="#L-1361"></a> if type(v) == 'table' then <a href="#L-1362"></a> if not wantrange or v[1] == v[2] then <a href="#L-1363"></a> -- Example: Date('partial', 2005) - Date('partial', 2001) gives <a href="#L-1364"></a> -- diff.years = { 3, 4 } to show the range of possible results. <a href="#L-1365"></a> -- If do not want a range, choose the second value as more expected. <a href="#L-1366"></a> return v[2] <a href="#L-1367"></a> end <a href="#L-1368"></a> end <a href="#L-1369"></a> return v <a href="#L-1370"></a> end <a href="#L-1371"></a> if code == 'ym' or code == 'ymd' then <a href="#L-1372"></a> if not wantrange and diff.iszero then <a href="#L-1373"></a> -- This avoids an unexpected result such as <a href="#L-1374"></a> -- Date('partial', 2001) - Date('partial', 2001) <a href="#L-1375"></a> -- giving diff = { years = 0, months = { 0, 11 } } <a href="#L-1376"></a> -- which would be reported as 0 years and 11 months. <a href="#L-1377"></a> return 0, 0 <a href="#L-1378"></a> end <a href="#L-1379"></a> return choose(diff.partial.years), choose(diff.partial.months) <a href="#L-1380"></a> end <a href="#L-1381"></a> if code == 'y' then <a href="#L-1382"></a> return choose(diff.partial.years) <a href="#L-1383"></a> end <a href="#L-1384"></a> if code == 'm' or code == 'w' or code == 'd' then <a href="#L-1385"></a> return choose({ diff.partial.mindiff:age(code), diff.partial.maxdiff:age(code) }) <a href="#L-1386"></a> end <a href="#L-1387"></a> return nil <a href="#L-1388"></a> end <a href="#L-1389"></a> local extra_days = wantduration and 1 or 0 <a href="#L-1390"></a> if code == 'wd' or code == 'w' or code == 'd' then <a href="#L-1391"></a> local offset = wantround and 0.5 or 0 <a href="#L-1392"></a> local days = diff.age_days + extra_days <a href="#L-1393"></a> if code == 'wd' or code == 'd' then <a href="#L-1394"></a> days = floor(days + offset) <a href="#L-1395"></a> if code == 'd' then <a href="#L-1396"></a> return days <a href="#L-1397"></a> end <a href="#L-1398"></a> return floor(days/7), days % 7 <a href="#L-1399"></a> end <a href="#L-1400"></a> return floor(days/7 + offset) <a href="#L-1401"></a> end <a href="#L-1402"></a> local H, M, S = diff.hours, diff.minutes, diff.seconds <a href="#L-1403"></a> if code == 'dh' or code == 'dhm' or code == 'dhms' or code == 'h' or code == 'hm' or code == 'hms' or code == 'M' or code == 's' then <a href="#L-1404"></a> local days = floor(diff.age_days + extra_days) <a href="#L-1405"></a> local inc_hour <a href="#L-1406"></a> if wantround then <a href="#L-1407"></a> if code == 'dh' or code == 'h' then <a href="#L-1408"></a> if M >= 30 then <a href="#L-1409"></a> inc_hour = true <a href="#L-1410"></a> end <a href="#L-1411"></a> elseif code == 'dhm' or code == 'hm' then <a href="#L-1412"></a> if S >= 30 then <a href="#L-1413"></a> M = M + 1 <a href="#L-1414"></a> if M >= 60 then <a href="#L-1415"></a> M = 0 <a href="#L-1416"></a> inc_hour = true <a href="#L-1417"></a> end <a href="#L-1418"></a> end <a href="#L-1419"></a> elseif code == 'M' then <a href="#L-1420"></a> if S >= 30 then <a href="#L-1421"></a> M = M + 1 <a href="#L-1422"></a> end <a href="#L-1423"></a> else <a href="#L-1424"></a> -- Nothing needed because S is an integer. <a href="#L-1425"></a> end <a href="#L-1426"></a> if inc_hour then <a href="#L-1427"></a> H = H + 1 <a href="#L-1428"></a> if H >= 24 then <a href="#L-1429"></a> H = 0 <a href="#L-1430"></a> days = days + 1 <a href="#L-1431"></a> end <a href="#L-1432"></a> end <a href="#L-1433"></a> end <a href="#L-1434"></a> if code == 'dh' or code == 'dhm' or code == 'dhms' then <a href="#L-1435"></a> if code == 'dh' then <a href="#L-1436"></a> return days, H <a href="#L-1437"></a> elseif code == 'dhm' then <a href="#L-1438"></a> return days, H, M <a href="#L-1439"></a> else <a href="#L-1440"></a> return days, H, M, S <a href="#L-1441"></a> end <a href="#L-1442"></a> end <a href="#L-1443"></a> local hours = days * 24 + H <a href="#L-1444"></a> if code == 'h' then <a href="#L-1445"></a> return hours <a href="#L-1446"></a> elseif code == 'hm' then <a href="#L-1447"></a> return hours, M <a href="#L-1448"></a> elseif code == 'M' or code == 's' then <a href="#L-1449"></a> M = hours * 60 + M <a href="#L-1450"></a> if code == 'M' then <a href="#L-1451"></a> return M <a href="#L-1452"></a> end <a href="#L-1453"></a> return M * 60 + S <a href="#L-1454"></a> end <a href="#L-1455"></a> return hours, M, S <a href="#L-1456"></a> end <a href="#L-1457"></a> if wantround then <a href="#L-1458"></a> local inc_hour <a href="#L-1459"></a> if code == 'ymdh' or code == 'ymwdh' then <a href="#L-1460"></a> if M >= 30 then <a href="#L-1461"></a> inc_hour = true <a href="#L-1462"></a> end <a href="#L-1463"></a> elseif code == 'ymdhm' or code == 'ymwdhm' then <a href="#L-1464"></a> if S >= 30 then <a href="#L-1465"></a> M = M + 1 <a href="#L-1466"></a> if M >= 60 then <a href="#L-1467"></a> M = 0 <a href="#L-1468"></a> inc_hour = true <a href="#L-1469"></a> end <a href="#L-1470"></a> end <a href="#L-1471"></a> elseif code == 'ymd' or code == 'ymwd' or code == 'yd' or code == 'md' then <a href="#L-1472"></a> if H >= 12 then <a href="#L-1473"></a> extra_days = extra_days + 1 <a href="#L-1474"></a> end <a href="#L-1475"></a> end <a href="#L-1476"></a> if inc_hour then <a href="#L-1477"></a> H = H + 1 <a href="#L-1478"></a> if H >= 24 then <a href="#L-1479"></a> H = 0 <a href="#L-1480"></a> extra_days = extra_days + 1 <a href="#L-1481"></a> end <a href="#L-1482"></a> end <a href="#L-1483"></a> end <a href="#L-1484"></a> local y, m, d = diff.years, diff.months, diff.days <a href="#L-1485"></a> if extra_days > 0 then <a href="#L-1486"></a> d = d + extra_days <a href="#L-1487"></a> if d > 28 or code == 'yd' then <a href="#L-1488"></a> -- Recalculate in case have passed a month. <a href="#L-1489"></a> diff = diff.date1 + extra_days - diff.date2 <a href="#L-1490"></a> y, m, d = diff.years, diff.months, diff.days <a href="#L-1491"></a> end <a href="#L-1492"></a> end <a href="#L-1493"></a> if code == 'ymd' then <a href="#L-1494"></a> return y, m, d <a href="#L-1495"></a> elseif code == 'yd' then <a href="#L-1496"></a> if y > 0 then <a href="#L-1497"></a> -- It is known that diff.date1 > diff.date2. <a href="#L-1498"></a> diff = diff.date1 - (diff.date2 + (y .. 'y')) <a href="#L-1499"></a> end <a href="#L-1500"></a> return y, floor(diff.age_days) <a href="#L-1501"></a> elseif code == 'md' then <a href="#L-1502"></a> return y * 12 + m, d <a href="#L-1503"></a> elseif code == 'ym' or code == 'm' then <a href="#L-1504"></a> if wantround then <a href="#L-1505"></a> if d >= 16 then <a href="#L-1506"></a> m = m + 1 <a href="#L-1507"></a> if m >= 12 then <a href="#L-1508"></a> m = 0 <a href="#L-1509"></a> y = y + 1 <a href="#L-1510"></a> end <a href="#L-1511"></a> end <a href="#L-1512"></a> end <a href="#L-1513"></a> if code == 'ym' then <a href="#L-1514"></a> return y, m <a href="#L-1515"></a> end <a href="#L-1516"></a> return y * 12 + m <a href="#L-1517"></a> elseif code == 'ymw' then <a href="#L-1518"></a> local weeks = floor(d/7) <a href="#L-1519"></a> if wantround then <a href="#L-1520"></a> local days = d % 7 <a href="#L-1521"></a> if days > 3 or (days == 3 and H >= 12) then <a href="#L-1522"></a> weeks = weeks + 1 <a href="#L-1523"></a> end <a href="#L-1524"></a> end <a href="#L-1525"></a> return y, m, weeks <a href="#L-1526"></a> elseif code == 'ymwd' then <a href="#L-1527"></a> return y, m, floor(d/7), d % 7 <a href="#L-1528"></a> elseif code == 'ymdh' then <a href="#L-1529"></a> return y, m, d, H <a href="#L-1530"></a> elseif code == 'ymwdh' then <a href="#L-1531"></a> return y, m, floor(d/7), d % 7, H <a href="#L-1532"></a> elseif code == 'ymdhm' then <a href="#L-1533"></a> return y, m, d, H, M <a href="#L-1534"></a> elseif code == 'ymwdhm' then <a href="#L-1535"></a> return y, m, floor(d/7), d % 7, H, M <a href="#L-1536"></a> end <a href="#L-1537"></a> if code == 'y' then <a href="#L-1538"></a> if wantround and m >= 6 then <a href="#L-1539"></a> y = y + 1 <a href="#L-1540"></a> end <a href="#L-1541"></a> return y <a href="#L-1542"></a> end <a href="#L-1543"></a> return nil <a href="#L-1544"></a>end <a href="#L-1545"></a> <a href="#L-1546"></a>local function _diff_duration(diff, code, options) <a href="#L-1547"></a> if type(options) ~= 'table' then <a href="#L-1548"></a> options = { round = options } <a href="#L-1549"></a> end <a href="#L-1550"></a> options.duration = true <a href="#L-1551"></a> return _diff_age(diff, code, options) <a href="#L-1552"></a>end <a href="#L-1553"></a> <a href="#L-1554"></a>-- Metatable for some operations on date differences. <a href="#L-1555"></a>diffmt = { -- for forward declaration above <a href="#L-1556"></a> __concat = function (lhs, rhs) <a href="#L-1557"></a> return tostring(lhs) .. tostring(rhs) <a href="#L-1558"></a> end, <a href="#L-1559"></a> __tostring = function (self) <a href="#L-1560"></a> return tostring(self.age_days) <a href="#L-1561"></a> end, <a href="#L-1562"></a> __index = function (self, key) <a href="#L-1563"></a> local value <a href="#L-1564"></a> if key == 'age_days' then <a href="#L-1565"></a> if rawget(self, 'partial') then <a href="#L-1566"></a> local function jdz(date) <a href="#L-1567"></a> return (date.partial and date.partial.first or date).jdz <a href="#L-1568"></a> end <a href="#L-1569"></a> value = jdz(self.date1) - jdz(self.date2) <a href="#L-1570"></a> else <a href="#L-1571"></a> value = self.date1.jdz - self.date2.jdz <a href="#L-1572"></a> end <a href="#L-1573"></a> end <a href="#L-1574"></a> if value ~= nil then <a href="#L-1575"></a> rawset(self, key, value) <a href="#L-1576"></a> return value <a href="#L-1577"></a> end <a href="#L-1578"></a> end, <a href="#L-1579"></a>} <a href="#L-1580"></a> <a href="#L-1581"></a>function DateDiff(date1, date2, options) -- for forward declaration above <a href="#L-1582"></a> -- Return a table with the difference between two dates (date1 - date2). <a href="#L-1583"></a> -- The difference is negative if date1 is older than date2. <a href="#L-1584"></a> -- Return nothing if invalid. <a href="#L-1585"></a> -- If d = date1 - date2 then <a href="#L-1586"></a> -- date1 = date2 + d <a href="#L-1587"></a> -- If date1 >= date2 and the dates have no H:M:S time specified then <a href="#L-1588"></a> -- date1 = date2 + (d.years..'y') + (d.months..'m') + d.days <a href="#L-1589"></a> -- where the larger time units are added first. <a href="#L-1590"></a> -- The result of Date(2015,1,x) + '1m' is Date(2015,2,28) for <a href="#L-1591"></a> -- x = 28, 29, 30, 31. That means, for example, <a href="#L-1592"></a> -- d = Date(2015,3,3) - Date(2015,1,31) <a href="#L-1593"></a> -- gives d.years, d.months, d.days = 0, 1, 3 (excluding date1). <a href="#L-1594"></a> if not (is_date(date1) and is_date(date2) and date1.calendar == date2.calendar) then <a href="#L-1595"></a> return <a href="#L-1596"></a> end <a href="#L-1597"></a> local wantfill <a href="#L-1598"></a> if type(options) == 'table' then <a href="#L-1599"></a> wantfill = options.fill <a href="#L-1600"></a> end <a href="#L-1601"></a> local isnegative = false <a href="#L-1602"></a> local iszero = false <a href="#L-1603"></a> if date1 < date2 then <a href="#L-1604"></a> isnegative = true <a href="#L-1605"></a> date1, date2 = date2, date1 <a href="#L-1606"></a> elseif date1 == date2 then <a href="#L-1607"></a> iszero = true <a href="#L-1608"></a> end <a href="#L-1609"></a> -- It is known that date1 >= date2 (period is from date2 to date1). <a href="#L-1610"></a> if date1.partial or date2.partial then <a href="#L-1611"></a> -- Two partial dates might have timelines: <a href="#L-1612"></a> ---------------------A=================B--- date1 is from A to B inclusive <a href="#L-1613"></a> --------C=======D-------------------------- date2 is from C to D inclusive <a href="#L-1614"></a> -- date1 > date2 iff A > C (date1.partial.first > date2.partial.first) <a href="#L-1615"></a> -- The periods can overlap ('April 2001' - '2001'): <a href="#L-1616"></a> -------------A===B------------------------- A=2001-04-01 B=2001-04-30 <a href="#L-1617"></a> --------C=====================D------------ C=2001-01-01 D=2001-12-31 <a href="#L-1618"></a> if wantfill then <a href="#L-1619"></a> date1, date2 = autofill(date1, date2) <a href="#L-1620"></a> else <a href="#L-1621"></a> local function zdiff(date1, date2) <a href="#L-1622"></a> local diff = date1 - date2 <a href="#L-1623"></a> if diff.isnegative then <a href="#L-1624"></a> return date1 - date1 -- a valid diff in case we call its methods <a href="#L-1625"></a> end <a href="#L-1626"></a> return diff <a href="#L-1627"></a> end <a href="#L-1628"></a> local function getdate(date, which) <a href="#L-1629"></a> return date.partial and date.partial[which] or date <a href="#L-1630"></a> end <a href="#L-1631"></a> local maxdiff = zdiff(getdate(date1, 'last'), getdate(date2, 'first')) <a href="#L-1632"></a> local mindiff = zdiff(getdate(date1, 'first'), getdate(date2, 'last')) <a href="#L-1633"></a> local years, months <a href="#L-1634"></a> if maxdiff.years == mindiff.years then <a href="#L-1635"></a> years = maxdiff.years <a href="#L-1636"></a> if maxdiff.months == mindiff.months then <a href="#L-1637"></a> months = maxdiff.months <a href="#L-1638"></a> else <a href="#L-1639"></a> months = { mindiff.months, maxdiff.months } <a href="#L-1640"></a> end <a href="#L-1641"></a> else <a href="#L-1642"></a> years = { mindiff.years, maxdiff.years } <a href="#L-1643"></a> end <a href="#L-1644"></a> return setmetatable({ <a href="#L-1645"></a> date1 = date1, <a href="#L-1646"></a> date2 = date2, <a href="#L-1647"></a> partial = { <a href="#L-1648"></a> years = years, <a href="#L-1649"></a> months = months, <a href="#L-1650"></a> maxdiff = maxdiff, <a href="#L-1651"></a> mindiff = mindiff, <a href="#L-1652"></a> }, <a href="#L-1653"></a> isnegative = isnegative, <a href="#L-1654"></a> iszero = iszero, <a href="#L-1655"></a> age = _diff_age, <a href="#L-1656"></a> duration = _diff_duration, <a href="#L-1657"></a> }, diffmt) <a href="#L-1658"></a> end <a href="#L-1659"></a> end <a href="#L-1660"></a> local y1, m1 = date1.year, date1.month <a href="#L-1661"></a> local y2, m2 = date2.year, date2.month <a href="#L-1662"></a> local years = y1 - y2 <a href="#L-1663"></a> local months = m1 - m2 <a href="#L-1664"></a> local d1 = date1.day + hms(date1) <a href="#L-1665"></a> local d2 = date2.day + hms(date2) <a href="#L-1666"></a> local days, time <a href="#L-1667"></a> if d1 >= d2 then <a href="#L-1668"></a> days = d1 - d2 <a href="#L-1669"></a> else <a href="#L-1670"></a> months = months - 1 <a href="#L-1671"></a> -- Get days in previous month (before the "to" date) given December has 31 days. <a href="#L-1672"></a> local dpm = m1 > 1 and days_in_month(y1, m1 - 1, date1.calendar) or 31 <a href="#L-1673"></a> if d2 >= dpm then <a href="#L-1674"></a> days = d1 - hms(date2) <a href="#L-1675"></a> else <a href="#L-1676"></a> days = dpm - d2 + d1 <a href="#L-1677"></a> end <a href="#L-1678"></a> end <a href="#L-1679"></a> if months < 0 then <a href="#L-1680"></a> years = years - 1 <a href="#L-1681"></a> months = months + 12 <a href="#L-1682"></a> end <a href="#L-1683"></a> days, time = math.modf(days) <a href="#L-1684"></a> local H, M, S = h_m_s(time) <a href="#L-1685"></a> return setmetatable({ <a href="#L-1686"></a> date1 = date1, <a href="#L-1687"></a> date2 = date2, <a href="#L-1688"></a> partial = false, -- avoid index lookup <a href="#L-1689"></a> years = years, <a href="#L-1690"></a> months = months, <a href="#L-1691"></a> days = days, <a href="#L-1692"></a> hours = H, <a href="#L-1693"></a> minutes = M, <a href="#L-1694"></a> seconds = S, <a href="#L-1695"></a> isnegative = isnegative, <a href="#L-1696"></a> iszero = iszero, <a href="#L-1697"></a> age = _diff_age, <a href="#L-1698"></a> duration = _diff_duration, <a href="#L-1699"></a> }, diffmt) <a href="#L-1700"></a>end <a href="#L-1701"></a> <a href="#L-1702"></a>return { <a href="#L-1703"></a> _current = current, <a href="#L-1704"></a> _Date = Date, <a href="#L-1705"></a> _days_in_month = days_in_month, <a href="#L-1706"></a>} </pre></div>   </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&useformat=desktop" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://simple.wikipedia.org/w/index.php?title=Module:Date&oldid=8554926">https://simple.wikipedia.org/w/index.php?title=Module:Date&oldid=8554926</a>"</div></div> <div id="catlinks" class="catlinks catlinks-allhidden" data-mw="interface"></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last changed on 23 November 2022, at 10:10.</li> <li id="footer-info-copyright">Text is available under the <a rel="nofollow" class="external text" href="//creativecommons.org/licenses/by-sa/4.0/">Creative Commons Attribution-ShareAlike License</a> and the <a href="/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License" title="Wikipedia:Text of the GNU Free Documentation License">GFDL</a>; additional terms may apply. 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