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import dayjs from "dayjs";
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import timezone from "dayjs/plugin/timezone";
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import utc from "dayjs/plugin/utc";
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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", {
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timeZone,
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});
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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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// TODO: Move to separate file
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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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|
|
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"America/Indiana/Indianapolis",
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|
|
|
"America/Indiana/Vincennes",
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|
|
|
"America/Indiana/Winamac",
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|
|
|
"America/Indiana/Marengo",
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|
|
|
"America/Indiana/Petersburg",
|
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|
|
|
"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",
|
|
|
|
|
];
|
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|
|
|
|
|
|
|
|
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.error(e.message);
|
|
|
|
|
console.log("Skip this timezone")
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result.sort((a, b) => {
|
|
|
|
|
if (a.time > b.time) {
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (b.time > a.time) {
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
})
|
|
|
|
|
|
|
|
|
|
return result;
|
|
|
|
|
}
|
