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I am developing an application with react/redux, and I started using library react-intl for formatting messages and dates.

I have already been able to show in a <FormattedDate> tag what timezone it's using.

I would like to have in a select all the possible timezones existing, so when the user picks one timezone, the <FormattedDate> changes to that format automatically.

I don't find how to list all posible timezones with react-intl.

I have also searched in google, and I did not find any built-in javascript function that does that.

Is it that way? How can I obtain that list?

Note: Don't think its the same question, since I don't want to use external libraries, if possible, if its the only solution then I will have to handle that way... :/

Nathan Arthur
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Mayday
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  • Possible duplicate of [How do I get timezones list using moment.js library?](http://stackoverflow.com/questions/21348404/how-do-i-get-timezones-list-using-moment-js-library) – Frank Tan Jul 15 '16 at 16:51
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    I found that library on google also, but I would like to do it with no more libraries, Just can believe its not implemented in javascript :/ – Mayday Jul 15 '16 at 20:24
  • Believe it. Time zones in JavaScript have a long history of being insufficiently supported, and while there are some recent improvements, we still have a long way to go. – Matt Johnson-Pint Jul 15 '16 at 22:29
  • There is no fixed "list of all possible timezone names". Timezones, just like locales, are an evolving standard. Any "fixed" list in a library or browser will become outdated and different libraries implement different "snapshots". The common reference is the Unicode CLDR database http://cldr.unicode.org/ https://github.com/unicode-org/cldr/commits/master/common/bcp47/timezone.xml; So taking a conservative subset supported on all platforms/libraries which consume your string may be a more robust option (esp. if your control is the sole source of input). – user6649841 Apr 21 '21 at 21:27

6 Answers6

74

I recently created an array containing all timezones and found that a couple of official timezones were missing from Chromium 71.0.3578.98.

You can see that array in this comment of the bug I reported. For convenience, I've included the array below:

var aryIannaTimeZones = [
  'Europe/Andorra',
  'Asia/Dubai',
  'Asia/Kabul',
  'Europe/Tirane',
  'Asia/Yerevan',
  'Antarctica/Casey',
  'Antarctica/Davis',
  'Antarctica/DumontDUrville', // https://bugs.chromium.org/p/chromium/issues/detail?id=928068
  'Antarctica/Mawson',
  'Antarctica/Palmer',
  'Antarctica/Rothera',
  'Antarctica/Syowa',
  'Antarctica/Troll',
  'Antarctica/Vostok',
  'America/Argentina/Buenos_Aires',
  'America/Argentina/Cordoba',
  'America/Argentina/Salta',
  'America/Argentina/Jujuy',
  'America/Argentina/Tucuman',
  'America/Argentina/Catamarca',
  'America/Argentina/La_Rioja',
  'America/Argentina/San_Juan',
  'America/Argentina/Mendoza',
  'America/Argentina/San_Luis',
  'America/Argentina/Rio_Gallegos',
  'America/Argentina/Ushuaia',
  'Pacific/Pago_Pago',
  'Europe/Vienna',
  'Australia/Lord_Howe',
  'Antarctica/Macquarie',
  'Australia/Hobart',
  'Australia/Currie',
  'Australia/Melbourne',
  'Australia/Sydney',
  'Australia/Broken_Hill',
  'Australia/Brisbane',
  'Australia/Lindeman',
  'Australia/Adelaide',
  'Australia/Darwin',
  'Australia/Perth',
  'Australia/Eucla',
  'Asia/Baku',
  'America/Barbados',
  'Asia/Dhaka',
  'Europe/Brussels',
  'Europe/Sofia',
  'Atlantic/Bermuda',
  'Asia/Brunei',
  'America/La_Paz',
  'America/Noronha',
  'America/Belem',
  'America/Fortaleza',
  'America/Recife',
  'America/Araguaina',
  'America/Maceio',
  'America/Bahia',
  'America/Sao_Paulo',
  'America/Campo_Grande',
  'America/Cuiaba',
  'America/Santarem',
  'America/Porto_Velho',
  'America/Boa_Vista',
  'America/Manaus',
  'America/Eirunepe',
  'America/Rio_Branco',
  'America/Nassau',
  'Asia/Thimphu',
  'Europe/Minsk',
  'America/Belize',
  'America/St_Johns',
  'America/Halifax',
  'America/Glace_Bay',
  'America/Moncton',
  'America/Goose_Bay',
  'America/Blanc-Sablon',
  'America/Toronto',
  'America/Nipigon',
  'America/Thunder_Bay',
  'America/Iqaluit',
  'America/Pangnirtung',
  'America/Atikokan',
  'America/Winnipeg',
  'America/Rainy_River',
  'America/Resolute',
  'America/Rankin_Inlet',
  'America/Regina',
  'America/Swift_Current',
  'America/Edmonton',
  'America/Cambridge_Bay',
  'America/Yellowknife',
  'America/Inuvik',
  'America/Creston',
  'America/Dawson_Creek',
  'America/Fort_Nelson',
  'America/Vancouver',
  'America/Whitehorse',
  'America/Dawson',
  'Indian/Cocos',
  'Europe/Zurich',
  'Africa/Abidjan',
  'Pacific/Rarotonga',
  'America/Santiago',
  'America/Punta_Arenas',
  'Pacific/Easter',
  'Asia/Shanghai',
  'Asia/Urumqi',
  'America/Bogota',
  'America/Costa_Rica',
  'America/Havana',
  'Atlantic/Cape_Verde',
  'America/Curacao',
  'Indian/Christmas',
  'Asia/Nicosia',
  'Asia/Famagusta',
  'Europe/Prague',
  'Europe/Berlin',
  'Europe/Copenhagen',
  'America/Santo_Domingo',
  'Africa/Algiers',
  'America/Guayaquil',
  'Pacific/Galapagos',
  'Europe/Tallinn',
  'Africa/Cairo',
  'Africa/El_Aaiun',
  'Europe/Madrid',
  'Africa/Ceuta',
  'Atlantic/Canary',
  'Europe/Helsinki',
  'Pacific/Fiji',
  'Atlantic/Stanley',
  'Pacific/Chuuk',
  'Pacific/Pohnpei',
  'Pacific/Kosrae',
  'Atlantic/Faroe',
  'Europe/Paris',
  'Europe/London',
  'Asia/Tbilisi',
  'America/Cayenne',
  'Africa/Accra',
  'Europe/Gibraltar',
  'America/Godthab',
  'America/Danmarkshavn',
  'America/Scoresbysund',
  'America/Thule',
  'Europe/Athens',
  'Atlantic/South_Georgia',
  'America/Guatemala',
  'Pacific/Guam',
  'Africa/Bissau',
  'America/Guyana',
  'Asia/Hong_Kong',
  'America/Tegucigalpa',
  'America/Port-au-Prince',
  'Europe/Budapest',
  'Asia/Jakarta',
  'Asia/Pontianak',
  'Asia/Makassar',
  'Asia/Jayapura',
  'Europe/Dublin',
  'Asia/Jerusalem',
  'Asia/Kolkata',
  'Indian/Chagos',
  'Asia/Baghdad',
  'Asia/Tehran',
  'Atlantic/Reykjavik',
  'Europe/Rome',
  'America/Jamaica',
  'Asia/Amman',
  'Asia/Tokyo',
  'Africa/Nairobi',
  'Asia/Bishkek',
  'Pacific/Tarawa',
  'Pacific/Enderbury',
  'Pacific/Kiritimati',
  'Asia/Pyongyang',
  'Asia/Seoul',
  'Asia/Almaty',
  'Asia/Qyzylorda',
  'Asia/Qostanay', // https://bugs.chromium.org/p/chromium/issues/detail?id=928068
  'Asia/Aqtobe',
  'Asia/Aqtau',
  'Asia/Atyrau',
  'Asia/Oral',
  'Asia/Beirut',
  'Asia/Colombo',
  'Africa/Monrovia',
  'Europe/Vilnius',
  'Europe/Luxembourg',
  'Europe/Riga',
  'Africa/Tripoli',
  'Africa/Casablanca',
  'Europe/Monaco',
  'Europe/Chisinau',
  'Pacific/Majuro',
  'Pacific/Kwajalein',
  'Asia/Yangon',
  'Asia/Ulaanbaatar',
  'Asia/Hovd',
  'Asia/Choibalsan',
  'Asia/Macau',
  'America/Martinique',
  'Europe/Malta',
  'Indian/Mauritius',
  'Indian/Maldives',
  'America/Mexico_City',
  'America/Cancun',
  'America/Merida',
  'America/Monterrey',
  'America/Matamoros',
  'America/Mazatlan',
  'America/Chihuahua',
  'America/Ojinaga',
  'America/Hermosillo',
  'America/Tijuana',
  'America/Bahia_Banderas',
  'Asia/Kuala_Lumpur',
  'Asia/Kuching',
  'Africa/Maputo',
  'Africa/Windhoek',
  'Pacific/Noumea',
  'Pacific/Norfolk',
  'Africa/Lagos',
  'America/Managua',
  'Europe/Amsterdam',
  'Europe/Oslo',
  'Asia/Kathmandu',
  'Pacific/Nauru',
  'Pacific/Niue',
  'Pacific/Auckland',
  'Pacific/Chatham',
  'America/Panama',
  'America/Lima',
  'Pacific/Tahiti',
  'Pacific/Marquesas',
  'Pacific/Gambier',
  'Pacific/Port_Moresby',
  'Pacific/Bougainville',
  'Asia/Manila',
  'Asia/Karachi',
  'Europe/Warsaw',
  'America/Miquelon',
  'Pacific/Pitcairn',
  'America/Puerto_Rico',
  'Asia/Gaza',
  'Asia/Hebron',
  'Europe/Lisbon',
  'Atlantic/Madeira',
  'Atlantic/Azores',
  'Pacific/Palau',
  'America/Asuncion',
  'Asia/Qatar',
  'Indian/Reunion',
  'Europe/Bucharest',
  'Europe/Belgrade',
  'Europe/Kaliningrad',
  'Europe/Moscow',
  'Europe/Simferopol',
  'Europe/Kirov',
  'Europe/Astrakhan',
  'Europe/Volgograd',
  'Europe/Saratov',
  'Europe/Ulyanovsk',
  'Europe/Samara',
  'Asia/Yekaterinburg',
  'Asia/Omsk',
  'Asia/Novosibirsk',
  'Asia/Barnaul',
  'Asia/Tomsk',
  'Asia/Novokuznetsk',
  'Asia/Krasnoyarsk',
  'Asia/Irkutsk',
  'Asia/Chita',
  'Asia/Yakutsk',
  'Asia/Khandyga',
  'Asia/Vladivostok',
  'Asia/Ust-Nera',
  'Asia/Magadan',
  'Asia/Sakhalin',
  'Asia/Srednekolymsk',
  'Asia/Kamchatka',
  'Asia/Anadyr',
  'Asia/Riyadh',
  'Pacific/Guadalcanal',
  'Indian/Mahe',
  'Africa/Khartoum',
  'Europe/Stockholm',
  'Asia/Singapore',
  'America/Paramaribo',
  'Africa/Juba',
  'Africa/Sao_Tome',
  'America/El_Salvador',
  'Asia/Damascus',
  'America/Grand_Turk',
  'Africa/Ndjamena',
  'Indian/Kerguelen',
  'Asia/Bangkok',
  'Asia/Dushanbe',
  'Pacific/Fakaofo',
  'Asia/Dili',
  'Asia/Ashgabat',
  'Africa/Tunis',
  'Pacific/Tongatapu',
  'Europe/Istanbul',
  'America/Port_of_Spain',
  'Pacific/Funafuti',
  'Asia/Taipei',
  'Europe/Kiev',
  'Europe/Uzhgorod',
  'Europe/Zaporozhye',
  'Pacific/Wake',
  'America/New_York',
  'America/Detroit',
  'America/Kentucky/Louisville',
  'America/Kentucky/Monticello',
  'America/Indiana/Indianapolis',
  'America/Indiana/Vincennes',
  'America/Indiana/Winamac',
  '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'
];

let date = new Date;
aryIannaTimeZones.forEach((timeZone) => {

  let strTime = date.toLocaleString("en-US", {
    timeZone: `${timeZone}`
  });
  console.log(timeZone, strTime);
});

If you're like me, in wondering why there are so many timezones, check out this question.

entithat
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Lonnie Best
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  • Thank you, I don't know why, documantation doesn't show this, or at least, it is not easy to find it.. – eyyo Feb 08 '21 at 18:15
13

For the future searchers, it's possible to get a list of all timezones using moment-timezone.

import momentTZ from 'moment-timezone';

const defaultTimeZone = momentTZ.tz.guess();
const timeZonesList = momentTZ.tz.names();
digitalCoffee
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    FWIW, I just had a look at this, and while it's true that you can get a list of names, that list does *not* match with Python's `pytz` library. Perhaps Python is an outlier, but moment-timezone may not be a reliable source if you need to keep zones in sync between client and server. Probably best to get the list from whatever your back end is. – hairbo Apr 20 '18 at 15:57
  • Then you're bringing in all of Moment, and there are valid reasons to consider Moment obsolete. – Adam Leggett Nov 13 '18 at 23:20
  • @AdamLeggett care to explain? – maxgalbu Oct 03 '19 at 08:46
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    @maxgalbu moment is large and the bulk of it is related to formatting, which is now redundant as it is covered by the built in Intl API (which the OP is using via react-intl). It's a well known shortcoming Intl doesn't have a function for enumerating timezones - he just needs a JSON copy. – Adam Leggett Oct 03 '19 at 14:05
4

The react-intl library's time zone functionality is provided exclusively by the ECMAScript Internationalization API features that are integrated into the browser.

While IANA time zone support is part of this spec, it currently only covers two scenarios:

  • Formating a Date object to a string, converting to a specific time zone in the process.

  • Determining the user's local time zone identifier.

Unfortunately, there is no function defined by the spec for enumerating the list of available time zones.

Additionally, note that support for the two functions it does have is currently limited to a handful of browsers. It will likely be quite some time before these capabilities can be depended upon. The ECMAScript Compatibility Table shows which browsers are supported. Under DateTimeFormat you'll find "resolvedOptions().timeZone defaults to the host environment" and "accepts IANA timezone names" that track these features.

Matt Johnson-Pint
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  • Thanks for the answer :), so, what would you recommend me to do as best approach to achieve my target? create the list myself? – Mayday Jul 18 '16 at 08:51
4

I did not find the list of time-zone through browser javascript so created array of timezone list and used it.

Till Dec 25, 2020 in JAVA 11 ZoneRulesProvider.java

I found 600 sorted TimeZone

'Africa/Abidjan','Africa/Accra','Africa/Addis_Ababa','Africa/Algiers','Africa/Asmara','Africa/Asmera','Africa/Bamako','Africa/Bangui','Africa/Banjul','Africa/Bissau','Africa/Blantyre','Africa/Brazzaville','Africa/Bujumbura','Africa/Cairo','Africa/Casablanca','Africa/Ceuta','Africa/Conakry','Africa/Dakar','Africa/Dar_es_Salaam','Africa/Djibouti','Africa/Douala','Africa/El_Aaiun','Africa/Freetown','Africa/Gaborone','Africa/Harare','Africa/Johannesburg','Africa/Juba','Africa/Kampala','Africa/Khartoum','Africa/Kigali','Africa/Kinshasa','Africa/Lagos','Africa/Libreville','Africa/Lome','Africa/Luanda','Africa/Lubumbashi','Africa/Lusaka','Africa/Malabo','Africa/Maputo','Africa/Maseru','Africa/Mbabane','Africa/Mogadishu','Africa/Monrovia','Africa/Nairobi','Africa/Ndjamena','Africa/Niamey','Africa/Nouakchott','Africa/Ouagadougou','Africa/Porto-Novo','Africa/Sao_Tome','Africa/Timbuktu','Africa/Tripoli','Africa/Tunis','Africa/Windhoek','America/Adak','America/Anchorage','America/Anguilla','America/Antigua','America/Araguaina','America/Argentina/Buenos_Aires','America/Argentina/Catamarca','America/Argentina/ComodRivadavia','America/Argentina/Cordoba','America/Argentina/Jujuy','America/Argentina/La_Rioja','America/Argentina/Mendoza','America/Argentina/Rio_Gallegos','America/Argentina/Salta','America/Argentina/San_Juan','America/Argentina/San_Luis','America/Argentina/Tucuman','America/Argentina/Ushuaia','America/Aruba','America/Asuncion','America/Atikokan','America/Atka','America/Bahia','America/Bahia_Banderas','America/Barbados','America/Belem','America/Belize','America/Blanc-Sablon','America/Boa_Vista','America/Bogota','America/Boise','America/Buenos_Aires','America/Cambridge_Bay','America/Campo_Grande','America/Cancun','America/Caracas','America/Catamarca','America/Cayenne','America/Cayman','America/Chicago','America/Chihuahua','America/Coral_Harbour','America/Cordoba','America/Costa_Rica','America/Creston','America/Cuiaba','America/Curacao','America/Danmarkshavn','America/Dawson','America/Dawson_Creek','America/Denver','America/Detroit','America/Dominica','America/Edmonton','America/Eirunepe','America/El_Salvador','America/Ensenada','America/Fort_Nelson','America/Fort_Wayne','America/Fortaleza','America/Glace_Bay','America/Godthab','America/Goose_Bay','America/Grand_Turk','America/Grenada','America/Guadeloupe','America/Guatemala','America/Guayaquil','America/Guyana','America/Halifax','America/Havana','America/Hermosillo','America/Indiana/Indianapolis','America/Indiana/Knox','America/Indiana/Marengo','America/Indiana/Petersburg','America/Indiana/Tell_City','America/Indiana/Vevay','America/Indiana/Vincennes','America/Indiana/Winamac','America/Indianapolis','America/Inuvik','America/Iqaluit','America/Jamaica','America/Jujuy','America/Juneau','America/Kentucky/Louisville','America/Kentucky/Monticello','America/Knox_IN','America/Kralendijk','America/La_Paz','America/Lima','America/Los_Angeles','America/Louisville','America/Lower_Princes','America/Maceio','America/Managua','America/Manaus','America/Marigot','America/Martinique','America/Matamoros','America/Mazatlan','America/Mendoza','America/Menominee','America/Merida','America/Metlakatla','America/Mexico_City','America/Miquelon','America/Moncton','America/Monterrey','America/Montevideo','America/Montreal','America/Montserrat','America/Nassau','America/New_York','America/Nipigon','America/Nome','America/Noronha','America/North_Dakota/Beulah','America/North_Dakota/Center','America/North_Dakota/New_Salem','America/Ojinaga','America/Panama','America/Pangnirtung','America/Paramaribo','America/Phoenix','America/Port-au-Prince','America/Port_of_Spain','America/Porto_Acre','America/Porto_Velho','America/Puerto_Rico','America/Punta_Arenas','America/Rainy_River','America/Rankin_Inlet','America/Recife','America/Regina','America/Resolute','America/Rio_Branco','America/Rosario','America/Santa_Isabel','America/Santarem','America/Santiago','America/Santo_Domingo','America/Sao_Paulo','America/Scoresbysund','America/Shiprock','America/Sitka','America/St_Barthelemy','America/St_Johns','America/St_Kitts','America/St_Lucia','America/St_Thomas','America/St_Vincent','America/Swift_Current','America/Tegucigalpa','America/Thule','America/Thunder_Bay','America/Tijuana','America/Toronto','America/Tortola','America/Vancouver','America/Virgin','America/Whitehorse','America/Winnipeg','America/Yakutat','America/Yellowknife','Antarctica/Casey','Antarctica/Davis','Antarctica/DumontDUrville','Antarctica/Macquarie','Antarctica/Mawson','Antarctica/McMurdo','Antarctica/Palmer','Antarctica/Rothera','Antarctica/South_Pole','Antarctica/Syowa','Antarctica/Troll','Antarctica/Vostok','Arctic/Longyearbyen','Asia/Aden','Asia/Almaty','Asia/Amman','Asia/Anadyr','Asia/Aqtau','Asia/Aqtobe','Asia/Ashgabat','Asia/Ashkhabad','Asia/Atyrau','Asia/Baghdad','Asia/Bahrain','Asia/Baku','Asia/Bangkok','Asia/Barnaul','Asia/Beirut','Asia/Bishkek','Asia/Brunei','Asia/Calcutta','Asia/Chita','Asia/Choibalsan','Asia/Chongqing','Asia/Chungking','Asia/Colombo','Asia/Dacca','Asia/Damascus','Asia/Dhaka','Asia/Dili','Asia/Dubai','Asia/Dushanbe','Asia/Famagusta','Asia/Gaza','Asia/Harbin','Asia/Hebron','Asia/Ho_Chi_Minh','Asia/Hong_Kong','Asia/Hovd','Asia/Irkutsk','Asia/Istanbul','Asia/Jakarta','Asia/Jayapura','Asia/Jerusalem','Asia/Kabul','Asia/Kamchatka','Asia/Karachi','Asia/Kashgar','Asia/Kathmandu','Asia/Katmandu','Asia/Khandyga','Asia/Kolkata','Asia/Krasnoyarsk','Asia/Kuala_Lumpur','Asia/Kuching','Asia/Kuwait','Asia/Macao','Asia/Macau','Asia/Magadan','Asia/Makassar','Asia/Manila','Asia/Muscat','Asia/Nicosia','Asia/Novokuznetsk','Asia/Novosibirsk','Asia/Omsk','Asia/Oral','Asia/Phnom_Penh','Asia/Pontianak','Asia/Pyongyang','Asia/Qatar','Asia/Qostanay','Asia/Qyzylorda','Asia/Rangoon','Asia/Riyadh','Asia/Saigon','Asia/Sakhalin','Asia/Samarkand','Asia/Seoul','Asia/Shanghai','Asia/Singapore','Asia/Srednekolymsk','Asia/Taipei','Asia/Tashkent','Asia/Tbilisi','Asia/Tehran','Asia/Tel_Aviv','Asia/Thimbu','Asia/Thimphu','Asia/Tokyo','Asia/Tomsk','Asia/Ujung_Pandang','Asia/Ulaanbaatar','Asia/Ulan_Bator','Asia/Urumqi','Asia/Ust-Nera','Asia/Vientiane','Asia/Vladivostok','Asia/Yakutsk','Asia/Yangon','Asia/Yekaterinburg','Asia/Yerevan','Atlantic/Azores','Atlantic/Bermuda','Atlantic/Canary','Atlantic/Cape_Verde','Atlantic/Faeroe','Atlantic/Faroe','Atlantic/Jan_Mayen','Atlantic/Madeira','Atlantic/Reykjavik','Atlantic/South_Georgia','Atlantic/St_Helena','Atlantic/Stanley','Australia/ACT','Australia/Adelaide','Australia/Brisbane','Australia/Broken_Hill','Australia/Canberra','Australia/Currie','Australia/Darwin','Australia/Eucla','Australia/Hobart','Australia/LHI','Australia/Lindeman','Australia/Lord_Howe','Australia/Melbourne','Australia/NSW','Australia/North','Australia/Perth','Australia/Queensland','Australia/South','Australia/Sydney','Australia/Tasmania','Australia/Victoria','Australia/West','Australia/Yancowinna','Brazil/Acre','Brazil/DeNoronha','Brazil/East','Brazil/West','CET','CST6CDT','Canada/Atlantic','Canada/Central','Canada/Eastern','Canada/Mountain','Canada/Newfoundland','Canada/Pacific','Canada/Saskatchewan','Canada/Yukon','Chile/Continental','Chile/EasterIsland','Cuba','EET','EST5EDT','Egypt','Eire','Etc/GMT','Etc/GMT+0','Etc/GMT+1','Etc/GMT+10','Etc/GMT+11','Etc/GMT+12','Etc/GMT+2','Etc/GMT+3','Etc/GMT+4','Etc/GMT+5','Etc/GMT+6','Etc/GMT+7','Etc/GMT+8','Etc/GMT+9','Etc/GMT-0','Etc/GMT-1','Etc/GMT-10','Etc/GMT-11','Etc/GMT-12','Etc/GMT-13','Etc/GMT-14','Etc/GMT-2','Etc/GMT-3','Etc/GMT-4','Etc/GMT-5','Etc/GMT-6','Etc/GMT-7','Etc/GMT-8','Etc/GMT-9','Etc/GMT0','Etc/Greenwich','Etc/UCT','Etc/UTC','Etc/Universal','Etc/Zulu','Europe/Amsterdam','Europe/Andorra','Europe/Astrakhan','Europe/Athens','Europe/Belfast','Europe/Belgrade','Europe/Berlin','Europe/Bratislava','Europe/Brussels','Europe/Bucharest','Europe/Budapest','Europe/Busingen','Europe/Chisinau','Europe/Copenhagen','Europe/Dublin','Europe/Gibraltar','Europe/Guernsey','Europe/Helsinki','Europe/Isle_of_Man','Europe/Istanbul','Europe/Jersey','Europe/Kaliningrad','Europe/Kiev','Europe/Kirov','Europe/Lisbon','Europe/Ljubljana','Europe/London','Europe/Luxembourg','Europe/Madrid','Europe/Malta','Europe/Mariehamn','Europe/Minsk','Europe/Monaco','Europe/Moscow','Europe/Nicosia','Europe/Oslo','Europe/Paris','Europe/Podgorica','Europe/Prague','Europe/Riga','Europe/Rome','Europe/Samara','Europe/San_Marino','Europe/Sarajevo','Europe/Saratov','Europe/Simferopol','Europe/Skopje','Europe/Sofia','Europe/Stockholm','Europe/Tallinn','Europe/Tirane','Europe/Tiraspol','Europe/Ulyanovsk','Europe/Uzhgorod','Europe/Vaduz','Europe/Vatican','Europe/Vienna','Europe/Vilnius','Europe/Volgograd','Europe/Warsaw','Europe/Zagreb','Europe/Zaporozhye','Europe/Zurich','GB','GB-Eire','GMT','GMT0','Greenwich','Hongkong','Iceland','Indian/Antananarivo','Indian/Chagos','Indian/Christmas','Indian/Cocos','Indian/Comoro','Indian/Kerguelen','Indian/Mahe','Indian/Maldives','Indian/Mauritius','Indian/Mayotte','Indian/Reunion','Iran','Israel','Jamaica','Japan','Kwajalein','Libya','MET','MST7MDT','Mexico/BajaNorte','Mexico/BajaSur','Mexico/General','NZ','NZ-CHAT','Navajo','PRC','PST8PDT','Pacific/Apia','Pacific/Auckland','Pacific/Bougainville','Pacific/Chatham','Pacific/Chuuk','Pacific/Easter','Pacific/Efate','Pacific/Enderbury','Pacific/Fakaofo','Pacific/Fiji','Pacific/Funafuti','Pacific/Galapagos','Pacific/Gambier','Pacific/Guadalcanal','Pacific/Guam','Pacific/Honolulu','Pacific/Johnston','Pacific/Kiritimati','Pacific/Kosrae','Pacific/Kwajalein','Pacific/Majuro','Pacific/Marquesas','Pacific/Midway','Pacific/Nauru','Pacific/Niue','Pacific/Norfolk','Pacific/Noumea','Pacific/Pago_Pago','Pacific/Palau','Pacific/Pitcairn','Pacific/Pohnpei','Pacific/Ponape','Pacific/Port_Moresby','Pacific/Rarotonga','Pacific/Saipan','Pacific/Samoa','Pacific/Tahiti','Pacific/Tarawa','Pacific/Tongatapu','Pacific/Truk','Pacific/Wake','Pacific/Wallis','Pacific/Yap','Poland','Portugal','ROK','Singapore','SystemV/AST4','SystemV/AST4ADT','SystemV/CST6','SystemV/CST6CDT','SystemV/EST5','SystemV/EST5EDT','SystemV/HST10','SystemV/MST7','SystemV/MST7MDT','SystemV/PST8','SystemV/PST8PDT','SystemV/YST9','SystemV/YST9YDT','Turkey','UCT','US/Alaska','US/Aleutian','US/Arizona','US/Central','US/East-Indiana','US/Eastern','US/Hawaii','US/Indiana-Starke','US/Michigan','US/Mountain','US/Pacific','US/Pacific-New','US/Samoa','UTC','Universal','W-SU','WET','Zulu'
Ravi Parekh
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3

I too needed to have a complete time zone list with preformated data like:

{
  name: "America/Los_Angeles",
  alternativeName: "Pacific Time",
  group: ["America/Los_Angeles"],
  countryName: "United States",
  mainCities: ["Los Angeles", "San Diego"],
  rawOffsetInMinutes: -480, // "raw" time zone offset, when there's no DST in place
  rawFormat: "-08:00 Pacific Time - Los Angeles, San Diego",
  currentTimeOffsetInMinutes: -420, // "current" time zone offset, this is why getTimeZones() is a method and not just an object: it can only work at runtime
  currentTimeFormat: "-07:00 Pacific Time - Los Angeles, San Diego",
}

Since I could not find a good list that would also be maintained, I created an npm package for it: https://github.com/vvo/tzdb/. The list of time zones is automatically updated when there are changes (like new time zones).

You can then use https://github.com/moment/luxon if you need to manipulate dates with time zones.

The list of time zones is grouped to reduce the number of time zones. We do grouping only when: same country AND same offsets (DST, non DST).

This basically gives you a time zone list that is very close to the one from Google Calendar.

Good luck!

vvo
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0

I realize my answer is late, but if you are using Intl and you care about time zones, and you're facing the web, then you are almost certainly going to need https://github.com/yahoo/date-time-format-timezone. Since you will have this in your project anyway, you can retrieve the time zone data from inside the polyfill even if you're not using the polyfill.

Everyone is using the IANA database so you should get consistent results.

Adam Leggett
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