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import dayjs from "dayjs";
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import utc from 'dayjs/plugin/utc'
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import timezone from 'dayjs/plugin/timezone'
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dayjs.extend(utc)
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dayjs.extend(timezone)
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function getTimezoneOffset(timeZone) {
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const now = new Date();
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const tzString = now.toLocaleString('en-US', { timeZone });
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const localString = now.toLocaleString('en-US');
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const diff = (Date.parse(localString) - Date.parse(tzString)) / 3600000;
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const offset = diff + now.getTimezoneOffset() / 60;
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return -offset;
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}
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// From: https://stackoverflow.com/questions/38399465/how-to-get-list-of-all-timezones-in-javascript
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const aryIannaTimeZones = [
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'Europe/Andorra',
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'Asia/Dubai',
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'Asia/Kabul',
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'Europe/Tirane',
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'Asia/Yerevan',
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'Antarctica/Casey',
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'Antarctica/Davis',
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'Antarctica/Mawson',
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'Antarctica/Palmer',
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'Antarctica/Rothera',
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'Antarctica/Syowa',
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'Antarctica/Troll',
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'Antarctica/Vostok',
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'America/Argentina/Buenos_Aires',
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'America/Argentina/Cordoba',
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'America/Argentina/Salta',
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'America/Argentina/Jujuy',
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'America/Argentina/Tucuman',
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'America/Argentina/Catamarca',
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'America/Argentina/La_Rioja',
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'America/Argentina/San_Juan',
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'America/Argentina/Mendoza',
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'America/Argentina/San_Luis',
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'America/Argentina/Rio_Gallegos',
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'America/Argentina/Ushuaia',
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'Pacific/Pago_Pago',
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'Europe/Vienna',
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'Australia/Lord_Howe',
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'Antarctica/Macquarie',
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'Australia/Hobart',
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'Australia/Currie',
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'Australia/Melbourne',
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'Australia/Sydney',
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'Australia/Broken_Hill',
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'Australia/Brisbane',
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'Australia/Lindeman',
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'Australia/Adelaide',
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'Australia/Darwin',
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'Australia/Perth',
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'Australia/Eucla',
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'Asia/Baku',
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'America/Barbados',
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'Asia/Dhaka',
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'Europe/Brussels',
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'Europe/Sofia',
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'Atlantic/Bermuda',
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'Asia/Brunei',
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'America/La_Paz',
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'America/Noronha',
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'America/Belem',
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'America/Fortaleza',
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'America/Recife',
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'America/Araguaina',
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'America/Maceio',
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'America/Bahia',
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'America/Sao_Paulo',
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'America/Campo_Grande',
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'America/Cuiaba',
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'America/Santarem',
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'America/Porto_Velho',
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'America/Boa_Vista',
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'America/Manaus',
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'America/Eirunepe',
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'America/Rio_Branco',
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'America/Nassau',
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'Asia/Thimphu',
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'Europe/Minsk',
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'America/Belize',
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'America/St_Johns',
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'America/Halifax',
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'America/Glace_Bay',
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'America/Moncton',
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'America/Goose_Bay',
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'America/Blanc-Sablon',
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'America/Toronto',
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'America/Nipigon',
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'America/Thunder_Bay',
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'America/Iqaluit',
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'America/Pangnirtung',
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'America/Atikokan',
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'America/Winnipeg',
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'America/Rainy_River',
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'America/Resolute',
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'America/Rankin_Inlet',
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'America/Regina',
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'America/Swift_Current',
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'America/Edmonton',
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'America/Cambridge_Bay',
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'America/Yellowknife',
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'America/Inuvik',
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'America/Creston',
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'America/Dawson_Creek',
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'America/Fort_Nelson',
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'America/Vancouver',
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'America/Whitehorse',
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'America/Dawson',
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'Indian/Cocos',
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'Europe/Zurich',
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'Africa/Abidjan',
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'Pacific/Rarotonga',
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'America/Santiago',
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'America/Punta_Arenas',
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'Pacific/Easter',
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'Asia/Shanghai',
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'Asia/Urumqi',
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'America/Bogota',
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'America/Costa_Rica',
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'America/Havana',
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'Atlantic/Cape_Verde',
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'America/Curacao',
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'Indian/Christmas',
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'Asia/Nicosia',
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'Asia/Famagusta',
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'Europe/Prague',
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'Europe/Berlin',
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'Europe/Copenhagen',
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'America/Santo_Domingo',
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'Africa/Algiers',
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'America/Guayaquil',
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'Pacific/Galapagos',
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'Europe/Tallinn',
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'Africa/Cairo',
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'Africa/El_Aaiun',
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'Europe/Madrid',
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'Africa/Ceuta',
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'Atlantic/Canary',
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'Europe/Helsinki',
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'Pacific/Fiji',
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'Atlantic/Stanley',
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'Pacific/Chuuk',
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'Pacific/Pohnpei',
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'Pacific/Kosrae',
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'Atlantic/Faroe',
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'Europe/Paris',
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'Europe/London',
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'Asia/Tbilisi',
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'America/Cayenne',
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'Africa/Accra',
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'Europe/Gibraltar',
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'America/Godthab',
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'America/Danmarkshavn',
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'America/Scoresbysund',
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'America/Thule',
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'Europe/Athens',
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'Atlantic/South_Georgia',
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'America/Guatemala',
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'Pacific/Guam',
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'Africa/Bissau',
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'America/Guyana',
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'Asia/Hong_Kong',
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'America/Tegucigalpa',
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'America/Port-au-Prince',
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'Europe/Budapest',
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'Asia/Jakarta',
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'Asia/Pontianak',
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'Asia/Makassar',
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'Asia/Jayapura',
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'Europe/Dublin',
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'Asia/Jerusalem',
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'Asia/Kolkata',
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'Indian/Chagos',
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'Asia/Baghdad',
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'Asia/Tehran',
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'Atlantic/Reykjavik',
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'Europe/Rome',
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'America/Jamaica',
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'Asia/Amman',
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'Asia/Tokyo',
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'Africa/Nairobi',
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'Asia/Bishkek',
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'Pacific/Tarawa',
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'Pacific/Enderbury',
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'Pacific/Kiritimati',
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'Asia/Pyongyang',
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'Asia/Seoul',
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'Asia/Almaty',
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'Asia/Qyzylorda',
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'Asia/Aqtobe',
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'Asia/Aqtau',
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'Asia/Atyrau',
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'Asia/Oral',
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'Asia/Beirut',
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'Asia/Colombo',
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'Africa/Monrovia',
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'Europe/Vilnius',
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'Europe/Luxembourg',
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'Europe/Riga',
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'Africa/Tripoli',
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'Africa/Casablanca',
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'Europe/Monaco',
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'Europe/Chisinau',
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'Pacific/Majuro',
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'Pacific/Kwajalein',
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'Asia/Yangon',
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'Asia/Ulaanbaatar',
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'Asia/Hovd',
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'Asia/Choibalsan',
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'Asia/Macau',
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'America/Martinique',
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'Europe/Malta',
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'Indian/Mauritius',
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'Indian/Maldives',
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'America/Mexico_City',
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'America/Cancun',
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'America/Merida',
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'America/Monterrey',
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'America/Matamoros',
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'America/Mazatlan',
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'America/Chihuahua',
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'America/Ojinaga',
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'America/Hermosillo',
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'America/Tijuana',
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'America/Bahia_Banderas',
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'Asia/Kuala_Lumpur',
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'Asia/Kuching',
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'Africa/Maputo',
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'Africa/Windhoek',
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'Pacific/Noumea',
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'Pacific/Norfolk',
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'Africa/Lagos',
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'America/Managua',
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'Europe/Amsterdam',
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'Europe/Oslo',
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'Asia/Kathmandu',
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'Pacific/Nauru',
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'Pacific/Niue',
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'Pacific/Auckland',
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'Pacific/Chatham',
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'America/Panama',
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'America/Lima',
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'Pacific/Tahiti',
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'Pacific/Marquesas',
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'Pacific/Gambier',
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'Pacific/Port_Moresby',
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'Pacific/Bougainville',
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'Asia/Manila',
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'Asia/Karachi',
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'Europe/Warsaw',
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'America/Miquelon',
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'Pacific/Pitcairn',
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'America/Puerto_Rico',
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'Asia/Gaza',
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'Asia/Hebron',
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'Europe/Lisbon',
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'Atlantic/Madeira',
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'Atlantic/Azores',
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'Pacific/Palau',
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'America/Asuncion',
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'Asia/Qatar',
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'Indian/Reunion',
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'Europe/Bucharest',
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'Europe/Belgrade',
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'Europe/Kaliningrad',
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'Europe/Moscow',
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'Europe/Simferopol',
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'Europe/Kirov',
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'Europe/Astrakhan',
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'Europe/Volgograd',
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'Europe/Saratov',
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'Europe/Ulyanovsk',
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'Europe/Samara',
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'Asia/Yekaterinburg',
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'Asia/Omsk',
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'Asia/Novosibirsk',
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'Asia/Barnaul',
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'Asia/Tomsk',
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'Asia/Novokuznetsk',
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'Asia/Krasnoyarsk',
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'Asia/Irkutsk',
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'Asia/Chita',
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'Asia/Yakutsk',
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'Asia/Khandyga',
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'Asia/Vladivostok',
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'Asia/Ust-Nera',
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'Asia/Magadan',
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'Asia/Sakhalin',
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'Asia/Srednekolymsk',
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'Asia/Kamchatka',
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'Asia/Anadyr',
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'Asia/Riyadh',
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'Pacific/Guadalcanal',
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'Indian/Mahe',
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'Africa/Khartoum',
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'Europe/Stockholm',
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'Asia/Singapore',
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'America/Paramaribo',
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'Africa/Juba',
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'Africa/Sao_Tome',
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'America/El_Salvador',
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'Asia/Damascus',
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'America/Grand_Turk',
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'Africa/Ndjamena',
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'Indian/Kerguelen',
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'Asia/Bangkok',
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'Asia/Dushanbe',
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'Pacific/Fakaofo',
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'Asia/Dili',
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'Asia/Ashgabat',
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'Africa/Tunis',
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'Pacific/Tongatapu',
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'Europe/Istanbul',
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'America/Port_of_Spain',
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'Pacific/Funafuti',
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'Asia/Taipei',
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'Europe/Kiev',
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'Europe/Uzhgorod',
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'Europe/Zaporozhye',
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'Pacific/Wake',
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'America/New_York',
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'America/Detroit',
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'America/Kentucky/Louisville',
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'America/Kentucky/Monticello',
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'America/Indiana/Indianapolis',
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'America/Indiana/Vincennes',
|
|
|
|
|
'America/Indiana/Winamac',
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|
|
|
|
'America/Indiana/Marengo',
|
|
|
|
|
'America/Indiana/Petersburg',
|
|
|
|
|
'America/Indiana/Vevay',
|
|
|
|
|
'America/Chicago',
|
|
|
|
|
'America/Indiana/Tell_City',
|
|
|
|
|
'America/Indiana/Knox',
|
|
|
|
|
'America/Menominee',
|
|
|
|
|
'America/North_Dakota/Center',
|
|
|
|
|
'America/North_Dakota/New_Salem',
|
|
|
|
|
'America/North_Dakota/Beulah',
|
|
|
|
|
'America/Denver',
|
|
|
|
|
'America/Boise',
|
|
|
|
|
'America/Phoenix',
|
|
|
|
|
'America/Los_Angeles',
|
|
|
|
|
'America/Anchorage',
|
|
|
|
|
'America/Juneau',
|
|
|
|
|
'America/Sitka',
|
|
|
|
|
'America/Metlakatla',
|
|
|
|
|
'America/Yakutat',
|
|
|
|
|
'America/Nome',
|
|
|
|
|
'America/Adak',
|
|
|
|
|
'Pacific/Honolulu',
|
|
|
|
|
'America/Montevideo',
|
|
|
|
|
'Asia/Samarkand',
|
|
|
|
|
'Asia/Tashkent',
|
|
|
|
|
'America/Caracas',
|
|
|
|
|
'Asia/Ho_Chi_Minh',
|
|
|
|
|
'Pacific/Efate',
|
|
|
|
|
'Pacific/Wallis',
|
|
|
|
|
'Pacific/Apia',
|
|
|
|
|
'Africa/Johannesburg',
|
|
|
|
|
];
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
export function timezoneList() {
|
|
|
|
|
|
|
|
|
|
let result = [];
|
|
|
|
|
|
|
|
|
|
for (let timezone of aryIannaTimeZones) {
|
|
|
|
|
|
|
|
|
|
try {
|
|
|
|
|
let display = dayjs().tz(timezone).format("Z");
|
|
|
|
|
|
|
|
|
|
result.push({
|
|
|
|
|
name: `(UTC${display}) ${timezone}`,
|
|
|
|
|
value: timezone,
|
|
|
|
|
time: getTimezoneOffset(timezone),
|
|
|
|
|
})
|
|
|
|
|
} catch (e) {
|
|
|
|
|
console.log(e.message);
|
|
|
|
|
console.log("Skip this timezone")
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result.sort((a, b) => {
|
|
|
|
|
if (a.time > b.time) {
|
|
|
|
|
return 1;
|
|
|
|
|
} else if (b.time > a.time) {
|
|
|
|
|
return -1;
|
|
|
|
|
} else {
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
})
|
|
|
|
|
|
|
|
|
|
return result;
|
|
|
|
|
};
|
|
|
|
|
|
