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PHP timezone_identifiers_list() Function

PHP timezone_identifiers_list() Function

PHP timezone_identifiers_list() function is used to return an indexed array containing all the timezone identifiers. It accepts atmost two parameters $datetimezone and $country. It returns an indexed array as output on success and False on failure.

Syntax:

timezone_identifiers_list($datetimezone, $country);

Parameter Values

Parameter Description
datetimezone This is an optional parameter. This parameter defines a DateTimeZone class constant.
country This is an optional parameter. This parameter defines a two-letter ISO 3166-1 compatible country code.

Here is an example of timezone_identifiers_list() function in PHP:

<html>
<body>
<pre>
<?php
print_r(timezone_identifiers_list(256));
?>
</pre>
</body>
</html>
Output:
Array
(
    [0] => Indian/Antananarivo
    [1] => Indian/Chagos
    [2] => Indian/Christmas
    [3] => Indian/Cocos
    [4] => Indian/Comoro
    [5] => Indian/Kerguelen
    [6] => Indian/Mahe
    [7] => Indian/Maldives
    [8] => Indian/Mauritius
    [9] => Indian/Mayotte
    [10] => Indian/Reunion
)

Example 2:

<html>
<body>
<pre>
<?php
print_r(timezone_identifiers_list());
?>
</pre>
</body>
</html>
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/Punta_Arenas
    [169] => America/Rainy_River
    [170] => America/Rankin_Inlet
    [171] => America/Recife
    [172] => America/Regina
    [173] => America/Resolute
    [174] => America/Rio_Branco
    [175] => America/Santarem
    [176] => America/Santiago
    [177] => America/Santo_Domingo
    [178] => America/Sao_Paulo
    [179] => America/Scoresbysund
    [180] => America/Sitka
    [181] => America/St_Barthelemy
    [182] => America/St_Johns
    [183] => America/St_Kitts
    [184] => America/St_Lucia
    [185] => America/St_Thomas
    [186] => America/St_Vincent
    [187] => America/Swift_Current
    [188] => America/Tegucigalpa
    [189] => America/Thule
    [190] => America/Thunder_Bay
    [191] => America/Tijuana
    [192] => America/Toronto
    [193] => America/Tortola
    [194] => America/Vancouver
    [195] => America/Whitehorse
    [196] => America/Winnipeg
    [197] => America/Yakutat
    [198] => America/Yellowknife
    [199] => Antarctica/Casey
    [200] => Antarctica/Davis
    [201] => Antarctica/DumontDUrville
    [202] => Antarctica/Macquarie
    [203] => Antarctica/Mawson
    [204] => Antarctica/McMurdo
    [205] => Antarctica/Palmer
    [206] => Antarctica/Rothera
    [207] => Antarctica/Syowa
    [208] => Antarctica/Troll
    [209] => Antarctica/Vostok
    [210] => Arctic/Longyearbyen
    [211] => Asia/Aden
    [212] => Asia/Almaty
    [213] => Asia/Amman
    [214] => Asia/Anadyr
    [215] => Asia/Aqtau
    [216] => Asia/Aqtobe
    [217] => Asia/Ashgabat
    [218] => Asia/Atyrau
    [219] => Asia/Baghdad
    [220] => Asia/Bahrain
    [221] => Asia/Baku
    [222] => Asia/Bangkok
    [223] => Asia/Barnaul
    [224] => Asia/Beirut
    [225] => Asia/Bishkek
    [226] => Asia/Brunei
    [227] => Asia/Chita
    [228] => Asia/Choibalsan
    [229] => Asia/Colombo
    [230] => Asia/Damascus
    [231] => Asia/Dhaka
    [232] => Asia/Dili
    [233] => Asia/Dubai
    [234] => Asia/Dushanbe
    [235] => Asia/Famagusta
    [236] => Asia/Gaza
    [237] => Asia/Hebron
    [238] => Asia/Ho_Chi_Minh
    [239] => Asia/Hong_Kong
    [240] => Asia/Hovd
    [241] => Asia/Irkutsk
    [242] => Asia/Jakarta
    [243] => Asia/Jayapura
    [244] => Asia/Jerusalem
    [245] => Asia/Kabul
    [246] => Asia/Kamchatka
    [247] => Asia/Karachi
    [248] => Asia/Kathmandu
    [249] => Asia/Khandyga
    [250] => Asia/Kolkata
    [251] => Asia/Krasnoyarsk
    [252] => Asia/Kuala_Lumpur
    [253] => Asia/Kuching
    [254] => Asia/Kuwait
    [255] => Asia/Macau
    [256] => Asia/Magadan
    [257] => Asia/Makassar
    [258] => Asia/Manila
    [259] => Asia/Muscat
    [260] => Asia/Nicosia
    [261] => Asia/Novokuznetsk
    [262] => Asia/Novosibirsk
    [263] => Asia/Omsk
    [264] => Asia/Oral
    [265] => Asia/Phnom_Penh
    [266] => Asia/Pontianak
    [267] => Asia/Pyongyang
    [268] => Asia/Qatar
    [269] => Asia/Qyzylorda
    [270] => Asia/Riyadh
    [271] => Asia/Sakhalin
    [272] => Asia/Samarkand
    [273] => Asia/Seoul
    [274] => Asia/Shanghai
    [275] => Asia/Singapore
    [276] => Asia/Srednekolymsk
    [277] => Asia/Taipei
    [278] => Asia/Tashkent
    [279] => Asia/Tbilisi
    [280] => Asia/Tehran
    [281] => Asia/Thimphu
    [282] => Asia/Tokyo
    [283] => Asia/Tomsk
    [284] => Asia/Ulaanbaatar
    [285] => Asia/Urumqi
    [286] => Asia/Ust-Nera
    [287] => Asia/Vientiane
    [288] => Asia/Vladivostok
    [289] => Asia/Yakutsk
    [290] => Asia/Yangon
    [291] => Asia/Yekaterinburg
    [292] => Asia/Yerevan
    [293] => Atlantic/Azores
    [294] => Atlantic/Bermuda
    [295] => Atlantic/Canary
    [296] => Atlantic/Cape_Verde
    [297] => Atlantic/Faroe
    [298] => Atlantic/Madeira
    [299] => Atlantic/Reykjavik
    [300] => Atlantic/South_Georgia
    [301] => Atlantic/St_Helena
    [302] => Atlantic/Stanley
    [303] => Australia/Adelaide
    [304] => Australia/Brisbane
    [305] => Australia/Broken_Hill
    [306] => Australia/Currie
    [307] => Australia/Darwin
    [308] => Australia/Eucla
    [309] => Australia/Hobart
    [310] => Australia/Lindeman
    [311] => Australia/Lord_Howe
    [312] => Australia/Melbourne
    [313] => Australia/Perth
    [314] => Australia/Sydney
    [315] => Europe/Amsterdam
    [316] => Europe/Andorra
    [317] => Europe/Astrakhan
    [318] => Europe/Athens
    [319] => Europe/Belgrade
    [320] => Europe/Berlin
    [321] => Europe/Bratislava
    [322] => Europe/Brussels
    [323] => Europe/Bucharest
    [324] => Europe/Budapest
    [325] => Europe/Busingen
    [326] => Europe/Chisinau
    [327] => Europe/Copenhagen
    [328] => Europe/Dublin
    [329] => Europe/Gibraltar
    [330] => Europe/Guernsey
    [331] => Europe/Helsinki
    [332] => Europe/Isle_of_Man
    [333] => Europe/Istanbul
    [334] => Europe/Jersey
    [335] => Europe/Kaliningrad
    [336] => Europe/Kiev
    [337] => Europe/Kirov
    [338] => Europe/Lisbon
    [339] => Europe/Ljubljana
    [340] => Europe/London
    [341] => Europe/Luxembourg
    [342] => Europe/Madrid
    [343] => Europe/Malta
    [344] => Europe/Mariehamn
    [345] => Europe/Minsk
    [346] => Europe/Monaco
    [347] => Europe/Moscow
    [348] => Europe/Oslo
    [349] => Europe/Paris
    [350] => Europe/Podgorica
    [351] => Europe/Prague
    [352] => Europe/Riga
    [353] => Europe/Rome
    [354] => Europe/Samara
    [355] => Europe/San_Marino
    [356] => Europe/Sarajevo
    [357] => Europe/Saratov
    [358] => Europe/Simferopol
    [359] => Europe/Skopje
    [360] => Europe/Sofia
    [361] => Europe/Stockholm
    [362] => Europe/Tallinn
    [363] => Europe/Tirane
    [364] => Europe/Ulyanovsk
    [365] => Europe/Uzhgorod
    [366] => Europe/Vaduz
    [367] => Europe/Vatican
    [368] => Europe/Vienna
    [369] => Europe/Vilnius
    [370] => Europe/Volgograd
    [371] => Europe/Warsaw
    [372] => Europe/Zagreb
    [373] => Europe/Zaporozhye
    [374] => Europe/Zurich
    [375] => Indian/Antananarivo
    [376] => Indian/Chagos
    [377] => Indian/Christmas
    [378] => Indian/Cocos
    [379] => Indian/Comoro
    [380] => Indian/Kerguelen
    [381] => Indian/Mahe
    [382] => Indian/Maldives
    [383] => Indian/Mauritius
    [384] => Indian/Mayotte
    [385] => Indian/Reunion
    [386] => Pacific/Apia
    [387] => Pacific/Auckland
    [388] => Pacific/Bougainville
    [389] => Pacific/Chatham
    [390] => Pacific/Chuuk
    [391] => Pacific/Easter
    [392] => Pacific/Efate
    [393] => Pacific/Enderbury
    [394] => Pacific/Fakaofo
    [395] => Pacific/Fiji
    [396] => Pacific/Funafuti
    [397] => Pacific/Galapagos
    [398] => Pacific/Gambier
    [399] => Pacific/Guadalcanal
    [400] => Pacific/Guam
    [401] => Pacific/Honolulu
    [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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