All available time zones in PHP
echo date_default_timezone_get(); //UTCHow to write in PHP and print to see all available time zones?
<?php
$list_timezones = DateTimeZone::listIdentifiers();
print_r($list_timezones );
?>Output :
Array
(
[0] => Africa/Abidjan
[1] => Africa/Accra
[2] => Africa/Addis_Ababa
[3] => Africa/Algiers
[4] => Africa/Asmara
[5] => Africa/Bamako
[6] => Africa/Bangui
[7] => Africa/Banjul
[8] => Africa/Bissau
[9] => Africa/Blantyre
[10] => Africa/Brazzaville
[11] => Africa/Bujumbura
[12] => Africa/Cairo
[13] => Africa/Casablanca
[14] => Africa/Ceuta
[15] => Africa/Conakry
[16] => Africa/Dakar
[17] => Africa/Dar_es_Salaam
[18] => Africa/Djibouti
[19] => Africa/Douala
[20] => Africa/El_Aaiun
[21] => Africa/Freetown
[22] => Africa/Gaborone
[23] => Africa/Harare
[24] => Africa/Johannesburg
[25] => Africa/Juba
[26] => Africa/Kampala
[27] => Africa/Khartoum
[28] => Africa/Kigali
[29] => Africa/Kinshasa
[30] => Africa/Lagos
[31] => Africa/Libreville
[32] => Africa/Lome
[33] => Africa/Luanda
[34] => Africa/Lubumbashi
[35] => Africa/Lusaka
[36] => Africa/Malabo
[37] => Africa/Maputo
[38] => Africa/Maseru
[39] => Africa/Mbabane
[40] => Africa/Mogadishu
[41] => Africa/Monrovia
[42] => Africa/Nairobi
[43] => Africa/Ndjamena
[44] => Africa/Niamey
[45] => Africa/Nouakchott
[46] => Africa/Ouagadougou
[47] => Africa/Porto-Novo
[48] => Africa/Sao_Tome
[49] => Africa/Tripoli
[50] => Africa/Tunis
[51] => Africa/Windhoek
[52] => America/Adak
[53] => America/Anchorage
[54] => America/Anguilla
[55] => America/Antigua
[56] => America/Araguaina
[57] => America/Argentina/Buenos_Aires
[58] => America/Argentina/Catamarca
[59] => America/Argentina/Cordoba
[60] => America/Argentina/Jujuy
[61] => America/Argentina/La_Rioja
[62] => America/Argentina/Mendoza
[63] => America/Argentina/Rio_Gallegos
[64] => America/Argentina/Salta
[65] => America/Argentina/San_Juan
[66] => America/Argentina/San_Luis
[67] => America/Argentina/Tucuman
[68] => America/Argentina/Ushuaia
[69] => America/Aruba
[70] => America/Asuncion
[71] => America/Atikokan
[72] => America/Bahia
[73] => America/Bahia_Banderas
[74] => America/Barbados
[75] => America/Belem
[76] => America/Belize
[77] => America/Blanc-Sablon
[78] => America/Boa_Vista
[79] => America/Bogota
[80] => America/Boise
[81] => America/Cambridge_Bay
[82] => America/Campo_Grande
[83] => America/Cancun
[84] => America/Caracas
[85] => America/Cayenne
[86] => America/Cayman
[87] => America/Chicago
[88] => America/Chihuahua
[89] => America/Costa_Rica
[90] => America/Creston
[91] => America/Cuiaba
[92] => America/Curacao
[93] => America/Danmarkshavn
[94] => America/Dawson
[95] => America/Dawson_Creek
[96] => America/Denver
[97] => America/Detroit
[98] => America/Dominica
[99] => America/Edmonton
[100] => America/Eirunepe
[101] => America/El_Salvador
[102] => America/Fort_Nelson
[103] => America/Fortaleza
[104] => America/Glace_Bay
[105] => America/Godthab
[106] => America/Goose_Bay
[107] => America/Grand_Turk
[108] => America/Grenada
[109] => America/Guadeloupe
[110] => America/Guatemala
[111] => America/Guayaquil
[112] => America/Guyana
[113] => America/Halifax
[114] => America/Havana
[115] => America/Hermosillo
[116] => America/Indiana/Indianapolis
[117] => America/Indiana/Knox
[118] => America/Indiana/Marengo
[119] => America/Indiana/Petersburg
[120] => America/Indiana/Tell_City
[121] => America/Indiana/Vevay
[122] => America/Indiana/Vincennes
[123] => America/Indiana/Winamac
[124] => America/Inuvik
[125] => America/Iqaluit
[126] => America/Jamaica
[127] => America/Juneau
[128] => America/Kentucky/Louisville
[129] => America/Kentucky/Monticello
[130] => America/Kralendijk
[131] => America/La_Paz
[132] => America/Lima
[133] => America/Los_Angeles
[134] => America/Lower_Princes
[135] => America/Maceio
[136] => America/Managua
[137] => America/Manaus
[138] => America/Marigot
[139] => America/Martinique
[140] => America/Matamoros
[141] => America/Mazatlan
[142] => America/Menominee
[143] => America/Merida
[144] => America/Metlakatla
[145] => America/Mexico_City
[146] => America/Miquelon
[147] => America/Moncton
[148] => America/Monterrey
[149] => America/Montevideo
[150] => America/Montserrat
[151] => America/Nassau
[152] => America/New_York
[153] => America/Nipigon
[154] => America/Nome
[155] => America/Noronha
[156] => America/North_Dakota/Beulah
[157] => America/North_Dakota/Center
[158] => America/North_Dakota/New_Salem
[159] => America/Ojinaga
[160] => America/Panama
[161] => America/Pangnirtung
[162] => America/Paramaribo
[163] => America/Phoenix
[164] => America/Port-au-Prince
[165] => America/Port_of_Spain
[166] => America/Porto_Velho
[167] => America/Puerto_Rico
[168] => America/Rainy_River
[169] => America/Rankin_Inlet
[170] => America/Recife
[171] => America/Regina
[172] => America/Resolute
[173] => America/Rio_Branco
[174] => America/Santarem
[175] => America/Santiago
[176] => America/Santo_Domingo
[177] => America/Sao_Paulo
[178] => America/Scoresbysund
[179] => America/Sitka
[180] => America/St_Barthelemy
[181] => America/St_Johns
[182] => America/St_Kitts
[183] => America/St_Lucia
[184] => America/St_Thomas
[185] => America/St_Vincent
[186] => America/Swift_Current
[187] => America/Tegucigalpa
[188] => America/Thule
[189] => America/Thunder_Bay
[190] => America/Tijuana
[191] => America/Toronto
[192] => America/Tortola
[193] => America/Vancouver
[194] => America/Whitehorse
[195] => America/Winnipeg
[196] => America/Yakutat
[197] => America/Yellowknife
[198] => Antarctica/Casey
[199] => Antarctica/Davis
[200] => Antarctica/DumontDUrville
[201] => Antarctica/Macquarie
[202] => Antarctica/Mawson
[203] => Antarctica/McMurdo
[204] => Antarctica/Palmer
[205] => Antarctica/Rothera
[206] => Antarctica/Syowa
[207] => Antarctica/Troll
[208] => Antarctica/Vostok
[209] => Arctic/Longyearbyen
[210] => Asia/Aden
[211] => Asia/Almaty
[212] => Asia/Amman
[213] => Asia/Anadyr
[214] => Asia/Aqtau
[215] => Asia/Aqtobe
[216] => Asia/Ashgabat
[217] => Asia/Atyrau
[218] => Asia/Baghdad
[219] => Asia/Bahrain
[220] => Asia/Baku
[221] => Asia/Bangkok
[222] => Asia/Barnaul
[223] => Asia/Beirut
[224] => Asia/Bishkek
[225] => Asia/Brunei
[226] => Asia/Chita
[227] => Asia/Choibalsan
[228] => Asia/Colombo
[229] => Asia/Damascus
[230] => Asia/Dhaka
[231] => Asia/Dili
[232] => Asia/Dubai
[233] => Asia/Dushanbe
[234] => Asia/Famagusta
[235] => Asia/Gaza
[236] => Asia/Hebron
[237] => Asia/Ho_Chi_Minh
[238] => Asia/Hong_Kong
[239] => Asia/Hovd
[240] => Asia/Irkutsk
[241] => Asia/Jakarta
[242] => Asia/Jayapura
[243] => Asia/Jerusalem
[244] => Asia/Kabul
[245] => Asia/Kamchatka
[246] => Asia/Karachi
[247] => Asia/Kathmandu
[248] => Asia/Khandyga
[249] => Asia/Kolkata
[250] => Asia/Krasnoyarsk
[251] => Asia/Kuala_Lumpur
[252] => Asia/Kuching
[253] => Asia/Kuwait
[254] => Asia/Macau
[255] => Asia/Magadan
[256] => Asia/Makassar
[257] => Asia/Manila
[258] => Asia/Muscat
[259] => Asia/Nicosia
[260] => Asia/Novokuznetsk
[261] => Asia/Novosibirsk
[262] => Asia/Omsk
[263] => Asia/Oral
[264] => Asia/Phnom_Penh
[265] => Asia/Pontianak
[266] => Asia/Pyongyang
[267] => Asia/Qatar
[268] => Asia/Qyzylorda
[269] => Asia/Riyadh
[270] => Asia/Sakhalin
[271] => Asia/Samarkand
[272] => Asia/Seoul
[273] => Asia/Shanghai
[274] => Asia/Singapore
[275] => Asia/Srednekolymsk
[276] => Asia/Taipei
[277] => Asia/Tashkent
[278] => Asia/Tbilisi
[279] => Asia/Tehran
[280] => Asia/Thimphu
[281] => Asia/Tokyo
[282] => Asia/Tomsk
[283] => Asia/Ulaanbaatar
[284] => Asia/Urumqi
[285] => Asia/Ust-Nera
[286] => Asia/Vientiane
[287] => Asia/Vladivostok
[288] => Asia/Yakutsk
[289] => Asia/Yangon
[290] => Asia/Yekaterinburg
[291] => Asia/Yerevan
[292] => Atlantic/Azores
[293] => Atlantic/Bermuda
[294] => Atlantic/Canary
[295] => Atlantic/Cape_Verde
[296] => Atlantic/Faroe
[297] => Atlantic/Madeira
[298] => Atlantic/Reykjavik
[299] => Atlantic/South_Georgia
[300] => Atlantic/St_Helena
[301] => Atlantic/Stanley
[302] => Australia/Adelaide
[303] => Australia/Brisbane
[304] => Australia/Broken_Hill
[305] => Australia/Currie
[306] => Australia/Darwin
[307] => Australia/Eucla
[308] => Australia/Hobart
[309] => Australia/Lindeman
[310] => Australia/Lord_Howe
[311] => Australia/Melbourne
[312] => Australia/Perth
[313] => Australia/Sydney
[314] => Europe/Amsterdam
[315] => Europe/Andorra
[316] => Europe/Astrakhan
[317] => Europe/Athens
[318] => Europe/Belgrade
[319] => Europe/Berlin
[320] => Europe/Bratislava
[321] => Europe/Brussels
[322] => Europe/Bucharest
[323] => Europe/Budapest
[324] => Europe/Busingen
[325] => Europe/Chisinau
[326] => Europe/Copenhagen
[327] => Europe/Dublin
[328] => Europe/Gibraltar
[329] => Europe/Guernsey
[330] => Europe/Helsinki
[331] => Europe/Isle_of_Man
[332] => Europe/Istanbul
[333] => Europe/Jersey
[334] => Europe/Kaliningrad
[335] => Europe/Kiev
[336] => Europe/Kirov
[337] => Europe/Lisbon
[338] => Europe/Ljubljana
[339] => Europe/London
[340] => Europe/Luxembourg
[341] => Europe/Madrid
[342] => Europe/Malta
[343] => Europe/Mariehamn
[344] => Europe/Minsk
[345] => Europe/Monaco
[346] => Europe/Moscow
[347] => Europe/Oslo
[348] => Europe/Paris
[349] => Europe/Podgorica
[350] => Europe/Prague
[351] => Europe/Riga
[352] => Europe/Rome
[353] => Europe/Samara
[354] => Europe/San_Marino
[355] => Europe/Sarajevo
[356] => Europe/Saratov
[357] => Europe/Simferopol
[358] => Europe/Skopje
[359] => Europe/Sofia
[360] => Europe/Stockholm
[361] => Europe/Tallinn
[362] => Europe/Tirane
[363] => Europe/Ulyanovsk
[364] => Europe/Uzhgorod
[365] => Europe/Vaduz
[366] => Europe/Vatican
[367] => Europe/Vienna
[368] => Europe/Vilnius
[369] => Europe/Volgograd
[370] => Europe/Warsaw
[371] => Europe/Zagreb
[372] => Europe/Zaporozhye
[373] => Europe/Zurich
[374] => Indian/Antananarivo
[375] => Indian/Chagos
[376] => Indian/Christmas
[377] => Indian/Cocos
[378] => Indian/Comoro
[379] => Indian/Kerguelen
[380] => Indian/Mahe
[381] => Indian/Maldives
[382] => Indian/Mauritius
[383] => Indian/Mayotte
[384] => Indian/Reunion
[385] => Pacific/Apia
[386] => Pacific/Auckland
[387] => Pacific/Bougainville
[388] => Pacific/Chatham
[389] => Pacific/Chuuk
[390] => Pacific/Easter
[391] => Pacific/Efate
[392] => Pacific/Enderbury
[393] => Pacific/Fakaofo
[394] => Pacific/Fiji
[395] => Pacific/Funafuti
[396] => Pacific/Galapagos
[397] => Pacific/Gambier
[398] => Pacific/Guadalcanal
[399] => Pacific/Guam
[400] => Pacific/Honolulu
[401] => Pacific/Johnston
[402] => Pacific/Kiritimati
[403] => Pacific/Kosrae
[404] => Pacific/Kwajalein
[405] => Pacific/Majuro
[406] => Pacific/Marquesas
[407] => Pacific/Midway
[408] => Pacific/Nauru
[409] => Pacific/Niue
[410] => Pacific/Norfolk
[411] => Pacific/Noumea
[412] => Pacific/Pago_Pago
[413] => Pacific/Palau
[414] => Pacific/Pitcairn
[415] => Pacific/Pohnpei
[416] => Pacific/Port_Moresby
[417] => Pacific/Rarotonga
[418] => Pacific/Saipan
[419] => Pacific/Tahiti
[420] => Pacific/Tarawa
[421] => Pacific/Tongatapu
[422] => Pacific/Wake
[423] => Pacific/Wallis
[424] => UTC
)
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