Full list
Values below can be used to set specified time zone for users.
By default time zone value is empty which means the time zone will be automatically detected.
| Africa/Abidjan | America/Godthab | Antarctica/Vostok | Europe/Andorra | UTC |
| Africa/Accra | America/Goose_Bay | Arctic/Longyearbyen | Europe/Athens | UTC+1 |
| Africa/Addis_Ababa | America/Grand_Turk | Asia/Aden | Europe/Belgrade | UTC+2 |
| Africa/Algiers | America/Grenada | Asia/Almaty | Europe/Berlin | UTC+3 |
| Africa/Asmara | America/Guadeloupe | Asia/Amman | Europe/Bratislava | UTC+4 |
| Africa/Bamako | America/Guatemala | Asia/Anadyr | Europe/Brussels | UTC+5 |
| Africa/Bangui | America/Guayaquil | Asia/Aqtau | Europe/Bucharest | UTC+6 |
| Africa/Banjul | America/Guyana | Asia/Aqtobe | Europe/Budapest | UTC+7 |
| Africa/Bissau | America/Halifax | Asia/Ashgabat | Europe/Busingen | UTC+8 |
| Africa/Blantyre | America/Havana | Asia/Baghdad | Europe/Chisinau | UTC+9 |
| Africa/Brazzaville | America/Hermosillo | Asia/Bahrain | Europe/Copenhagen | UTC+10 |
| Africa/Bujumbura | America/Indiana/Indianapolis | Asia/Baku | Europe/Dublin | UTC+11 |
| Africa/Cairo | America/Indiana/Knox | Asia/Bangkok | Europe/Gibraltar | UTC+12 |
| Africa/Casablanca | America/Indiana/Marengo | Asia/Beirut | Europe/Guernsey | UTC+13 |
| Africa/Ceuta | America/Indiana/Petersburg | Asia/Bishkek | Europe/Helsinki | UTC+14 |
| Africa/Conakry | America/Indiana/Tell_City | Asia/Brunei | Europe/Isle_of_Man | UTC-1 |
| Africa/Dakar | America/Indiana/Vevay | Asia/Choibalsan | Europe/Istanbul | UTC-2 |
| Africa/Dar_es_Salaam | America/Indiana/Vincennes | Asia/Chongqing | Europe/Jersey | UTC-3 |
| Africa/Djibouti | America/Indiana/Winamac | Asia/Colombo | Europe/Kaliningrad | UTC-4 |
| Africa/Douala | America/Inuvik | Asia/Damascus | Europe/Kiev | UTC-5 |
| Africa/El_Aaiun | America/Iqaluit | Asia/Dhaka | Europe/Lisbon | UTC-6 |
| Africa/Freetown | America/Jamaica | Asia/Dili | Europe/Ljubljana | UTC-7 |
| Africa/Gaborone | America/Juneau | Asia/Dubai | Europe/London | UTC-8 |
| Africa/Harare | America/Kentucky/Louisville | Asia/Dushanbe | Europe/Luxembourg | UTC-9 |
| Africa/Johannesburg | America/Kentucky/Monticello | Asia/Gaza | Europe/Madrid | UTC-10 |
| Africa/Juba | America/Kralendijk | Asia/Harbin | Europe/Malta | UTC-11 |
| Africa/Kampala | America/La_Paz | Asia/Hebron | Europe/Mariehamn | UTC-12 |
| Africa/Khartoum | America/Lima | Asia/Ho_Chi_Minh | Europe/Minsk | |
| Africa/Kigali | America/Los_Angeles | Asia/Hong_Kong | Europe/Monaco | |
| Africa/Kinshasa | America/Lower_Princes | Asia/Hovd | Europe/Moscow | |
| Africa/Lagos | America/Maceio | Asia/Irkutsk | Europe/Oslo | |
| Africa/Libreville | America/Managua | Asia/Jakarta | Europe/Paris | |
| Africa/Lome | America/Manaus | Asia/Jayapura | Europe/Podgorica | |
| Africa/Luanda | America/Marigot | Asia/Jerusalem | Europe/Prague | |
| Africa/Lubumbashi | America/Martinique | Asia/Kabul | Europe/Riga | |
| Africa/Lusaka | America/Matamoros | Asia/Kamchatka | Europe/Rome | |
| Africa/Malabo | America/Mazatlan | Asia/Karachi | Europe/Samara | |
| Africa/Maputo | America/Menominee | Asia/Kashgar | Europe/San_Marino | |
| Africa/Maseru | America/Merida | Asia/Kathmandu | Europe/Sarajevo | |
| Africa/Mbabane | America/Metlakatla | Asia/Khandyga | Europe/Simferopol | |
| Africa/Mogadishu | America/Mexico_City | Asia/Kolkata | Europe/Skopje | |
| Africa/Monrovia | America/Miquelon | Asia/Krasnoyarsk | Europe/Sofia | |
| Africa/Nairobi | America/Moncton | Asia/Kuala_Lumpur | Europe/Stockholm | |
| Africa/Ndjamena | America/Monterrey | Asia/Kuching | Europe/Tallinn | |
| Africa/Niamey | America/Montevideo | Asia/Kuwait | Europe/Tirane | |
| Africa/Nouakchott | America/Montserrat | Asia/Macau | Europe/Uzhgorod | |
| Africa/Ouagadougou | America/Nassau | Asia/Magadan | Europe/Vaduz | |
| Africa/Porto-Novo | America/New_York | Asia/Makassar | Europe/Vatican | |
| Africa/Sao_Tome | America/Nipigon | Asia/Manila | Europe/Vienna | |
| Africa/Tripoli | America/Nome | Asia/Muscat | Europe/Vilnius | |
| Africa/Tunis | America/Noronha | Asia/Nicosia | Europe/Volgograd | |
| Africa/Windhoek | America/North_Dakota/Beulah | Asia/Novokuznetsk | Europe/Warsaw | |
| America/Adak | America/North_Dakota/Center | Asia/Novosibirsk | Europe/Zagreb | |
| America/Anchorage | America/North_Dakota/New_Salem | Asia/Omsk | Europe/Zaporozhye | |
| America/Anguilla | America/Ojinaga | Asia/Oral | Europe/Zurich | |
| America/Antigua | America/Panama | Asia/Phnom_Penh | Indian/Antananarivo | |
| America/Araguaina | America/Pangnirtung | Asia/Pontianak | Indian/Chagos | |
| America/Argentina/Buenos_Aires | America/Paramaribo | Asia/Pyongyang | Indian/Christmas | |
| America/Argentina/Catamarca | America/Phoenix | Asia/Qatar | Indian/Cocos | |
| America/Argentina/Cordoba | America/Port-au-Prince | Asia/Qyzylorda | Indian/Comoro | |
| America/Argentina/Jujuy | America/Port_of_Spain | Asia/Rangoon | Indian/Kerguelen | |
| America/Argentina/La_Rioja | America/Porto_Velho | Asia/Riyadh | Indian/Mahe | |
| America/Argentina/Mendoza | America/Puerto_Rico | Asia/Sakhalin | Indian/Maldives | |
| America/Argentina/Rio_Gallegos | America/Rainy_River | Asia/Samarkand | Indian/Mauritius | |
| America/Argentina/Salta | America/Rankin_Inlet | Asia/Seoul | Indian/Mayotte | |
| America/Argentina/San_Juan | America/Recife | Asia/Shanghai | Indian/Reunion | |
| America/Argentina/San_Luis | America/Regina | Asia/Singapore | Pacific/Apia | |
| America/Argentina/Tucuman | America/Resolute | Asia/Taipei | Pacific/Auckland | |
| America/Argentina/Ushuaia | America/Rio_Branco | Asia/Tashkent | Pacific/Chatham | |
| America/Aruba | America/Santa_Isabel | Asia/Tbilisi | Pacific/Chuuk | |
| America/Asuncion | America/Santarem | Asia/Tehran | Pacific/Easter | |
| America/Atikokan | America/Santiago | Asia/Thimphu | Pacific/Efate | |
| America/Bahia | America/Santo_Domingo | Asia/Tokyo | Pacific/Enderbury | |
| America/Bahia_Banderas | America/Sao_Paulo | Asia/Ulaanbaatar | Pacific/Fakaofo | |
| America/Barbados | America/Scoresbysund | Asia/Urumqi | Pacific/Fiji | |
| America/Belem | America/Sitka | Asia/Ust-Nera | Pacific/Funafuti | |
| America/Belize | America/St_Barthelemy | Asia/Vientiane | Pacific/Galapagos | |
| America/Blanc-Sablon | America/St_Johns | Asia/Vladivostok | Pacific/Gambier | |
| America/Boa_Vista | America/St_Kitts | Asia/Yakutsk | Pacific/Guadalcanal | |
| America/Bogota | America/St_Lucia | Asia/Yekaterinburg | Pacific/Guam | |
| America/Boise | America/St_Thomas | Asia/Yerevan | Pacific/Honolulu | |
| America/Cambridge_Bay | America/St_Vincent | Atlantic/Azores | Pacific/Johnston | |
| America/Campo_Grande | America/Swift_Current | Atlantic/Bermuda | Pacific/Kiritimati | |
| America/Cancun | America/Tegucigalpa | Atlantic/Canary | Pacific/Kosrae | |
| America/Caracas | America/Thule | Atlantic/Cape_Verde | Pacific/Kwajalein | |
| America/Cayenne | America/Thunder_Bay | Atlantic/Faroe | Pacific/Majuro | |
| America/Cayman | America/Tijuana | Atlantic/Madeira | Pacific/Marquesas | |
| America/Chicago | America/Toronto | Atlantic/Reykjavik | Pacific/Midway | |
| America/Chihuahua | America/Tortola | Atlantic/South_Georgia | Pacific/Nauru | |
| America/Costa_Rica | America/Vancouver | Atlantic/St_Helena | Pacific/Niue | |
| America/Creston | America/Whitehorse | Atlantic/Stanley | Pacific/Norfolk | |
| America/Cuiaba | America/Winnipeg | Australia/Adelaide | Pacific/Noumea | |
| America/Curacao | America/Yakutat | Australia/Brisbane | Pacific/Pago_Pago | |
| America/Danmarkshavn | America/Yellowknife | Australia/Broken_Hill | Pacific/Palau | |
| America/Dawson | Antarctica/Casey | Australia/Currie | Pacific/Pitcairn | |
| America/Dawson_Creek | Antarctica/Davis | Australia/Darwin | Pacific/Pohnpei | |
| America/Denver | Antarctica/DumontDUrville | Australia/Eucla | Pacific/Port_Moresby | |
| America/Detroit | Antarctica/Macquarie | Australia/Hobart | Pacific/Rarotonga | |
| America/Dominica | Antarctica/Mawson | Australia/Lindeman | Pacific/Saipan | |
| America/Edmonton | Antarctica/McMurdo | Australia/Lord_Howe | Pacific/Tahiti | |
| America/Eirunepe | Antarctica/Palmer | Australia/Melbourne | Pacific/Tarawa | |
| America/El_Salvador | Antarctica/Rothera | Australia/Perth | Pacific/Tongatapu | |
| America/Fortaleza | Antarctica/Syowa | Australia/Sydney | Pacific/Wake | |
| America/Glace_Bay | Antarctica/Troll | Europe/Amsterdam | Pacific/Wallis |