Timezone

Synopsis for the class DateTimeZone:

__construct (string $timezone)	ALIAS timezone_open(……)
array getLocation ()	ALIAS timezone_location_get(……)
string getName ()	ALIAS timezone_name_get(……)
int getOffset (DateTime $dttime)	ALIAS timezone_offset_get(……)
array getTransitions ( [int $timestamp_begin [, int $timestamp_end ]])	ALIAS timezone_transitions_get(……)
static array listAbbreviations ()	ALIAS timezone_abbreviations_list()
static array listIdentifiers ( [int $what=DateTimeZone::ALL [,string $country=NULL]])	ALIAS timezone_identifiers_list(……)

date_default_timezone_set($s) sets to $s the default timezone used by all date/time functions. It returns true if $s is a valid timezone, false otherwise . date_default_timezone_get() gets the default timezone used by all date/time functions. timezone_ version_get() returns the current version of the timezone as a string. timezone_name_from_abbr($s) returns the timezone name from abbreviation.

Eg. Using DateTimeZone:

<!DOCTYPE html><html><head></head>
<body><?php
echo date_default_timezone_get()."<br />";
echo timezone_version_get()."<br />";
echo timezone_name_from_abbr("CET")."<br />";

$dtz = new DateTimeZone('Asia/Kuching');
$dt = new DateTime('now',$dtz);
echo $dt->format('r')."<br />";

// prints the timezone name, Asia/Kuching
echo $dtz->getName()."<br />";

// prints the timezone offset in seconds, 28800
echo $dtz->getOffset($dt)."<br />"; 

// prints an array of geographical information
print_r($dtz->getLocation()); echo "<br />";

// prints all transitions for the timezone
//print_r($dtz->getTransitions()); echo "<br />";

// prints an associative array containing 
// dst, offset and the timezone name
//print_r($dtz->listAbbreviations()); echo "<br />";

// prints a numerically indexed array with all timezone names
//print_r($dtz->listIdentifiers()); echo "<br />";

?></body></html>

<!DOCTYPE html><html><head></head>
<body><?php
echo date_default_timezone_get()."<br />";
echo timezone_version_get()."<br />";
echo timezone_name_from_abbr("CET")."<br />";

$dtz = new DateTimeZone('Asia/Kuching');
$dt = new DateTime('now',$dtz);
echo $dt->format('r')."<br />";

// prints the timezone name, Asia/Kuching
echo $dtz->getName()."<br />";

// prints the timezone offset in seconds, 28800
echo $dtz->getOffset($dt)."<br />"; 

// prints an array of geographical information
print_r($dtz->getLocation()); echo "<br />";

// prints all transitions for the timezone
//print_r($dtz->getTransitions()); echo "<br />";

// prints an associative array containing 
// dst, offset and the timezone name
//print_r($dtz->listAbbreviations()); echo "<br />";

// prints a numerically indexed array with all timezone names
//print_r($dtz->listIdentifiers()); echo "<br />";

?></body></html>

Europe/Berlin
2012.3
Europe/Berlin
Sun, 18 Nov 2012 13:47:26 +0800
Asia/Kuching
28800
Array ( [country_code] => MY [latitude] => 1.55 [longitude] => 110.33333 [comments] => Sabah & Sarawak )

Timezone names for DateTimeZone
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_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/ 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/Vostok
Arctic/Longyearbyen
Asia/Aden	Asia/Almaty	Asia/Amman	Asia/Anadyr	Asia/Aqtau
Asia/Aqtobe	Asia/Ashgabat	Asia/Ashkhabad	Asia/Baghdad	Asia/Bahrain
Asia/Baku	Asia/Bangkok	Asia/Beirut	Asia/Bishkek	Asia/Brunei
Asia/Calcutta	Asia/Choibalsan	Asia/Chongqing	Asia/Chungking	Asia/Colombo
Asia/Dacca	Asia/Damascus	Asia/Dhaka	Asia/Dili	Asia/Dubai
Asia/Dushanbe	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/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/Qyzylorda	Asia/Rangoon
Asia/Riyadh	Asia/Saigon	Asia/Sakhalin	Asia/Samarkand	Asia/Seoul
Asia/Shanghai	Asia/Singapore	Asia/Taipei	Asia/Tashkent	Asia/Tbilisi
Asia/Tehran	Asia/Tel_Aviv	Asia/Thimbu	Asia/Thimphu	Asia/Tokyo
Asia/Ujung_Pandang	Asia/Ulaanbaatar	Asia/Ulan_Bator	Asia/Urumqi	Asia/Vientiane
Asia/Vladivostok	Asia/Yakutsk	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/North	Australia/NSW
Australia/Perth	Australia/Queensland	Australia/South	Australia/Sydney	Australia/Tasmania
Australia/Victoria	Australia/West	Australia/Yancowinna
Europe/Amsterdam	Europe/Andorra	Europe/Athens	Europe/Belfast	Europe/Belgrade
Europe/Berlin	Europe/Bratislava	Europe/Brussels	Europe/Bucharest	Europe/Budapest
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/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/Simferopol	Europe/Skopje	Europe/Sofia	Europe/Stockholm
Europe/Tallinn	Europe/Tirane	Europe/Tiraspol	Europe/Uzhgorod	Europe/Vaduz
Europe/Vatican	Europe/Vienna	Europe/Vilnius	Europe/Volgograd	Europe/Warsaw
Europe/Zagreb	Europe/Zaporozhye	Europe/Zurich
Indian/Antananarivo	Indian/Chagos	Indian/Christmas	Indian/Cocos	Indian/Comoro
Indian/Kerguelen	Indian/Mahe	Indian/Maldives	Indian/Mauritius	Indian/Mayotte
Indian/Reunion
Pacific/Apia	Pacific/Auckland	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
Brazil/Acre	Brazil/DeNoronha	Brazil/East	Brazil/West	Canada/Atlantic
Canada/Central	Canada/ East-Saskatchewan	Canada/Eastern	Canada/Mountain	Canada/Newfoundland
Canada/Pacific	Canada/ Saskatchewan	Canada/Yukon	CET	Chile/Continental
Chile/EasterIsland	CST6CDT	Cuba	EET	Egypt
Eire	EST	EST5EDT	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/Universal	Etc/UTC	Etc/Zulu	Factory	GB
GB-Eire	GMT	GMT+0	GMT-0	GMT0
Greenwich	Hongkong	HST	Iceland	Iran
Israel	Jamaica	Japan	Kwajalein	Libya
MET	Mexico/BajaNorte	Mexico/BajaSur	Mexico/General	MST
MST7MDT	Navajo	NZ	NZ-CHAT	Poland
Portugal	PRC	PST8PDT	ROC	ROK
Singapore	Turkey	UCT	Universal	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	W-SU	WET
Zulu

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last update: 16 Jun 2024

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