| timezoneに指定可能なタイムゾーンID | UTCからの時差 |
| Etc/GMT+12 | -12 |
| Etc/GMT+11 | -11 |
| MIT | -11 |
| Pacific/Apia | -11 |
| Pacific/Midway | -11 |
| Pacific/Niue | -11 |
| Pacific/Pago_Pago | -11 |
| Pacific/Samoa | -11 |
| US/Samoa | -11 |
| America/Adak | -10 |
| America/Atka | -10 |
| Etc/GMT+10 | -10 |
| HST | -10 |
| Pacific/Fakaofo | -10 |
| Pacific/Honolulu | -10 |
| Pacific/Johnston | -10 |
| Pacific/Rarotonga | -10 |
| Pacific/Tahiti | -10 |
| SystemV/HST10 | -10 |
| US/Aleutian | -10 |
| US/Hawaii | -10 |
| Pacific/Marquesas | -9 |
| AST | -9 |
| America/Anchorage | -9 |
| America/Juneau | -9 |
| America/Nome | -9 |
| America/Yakutat | -9 |
| Etc/GMT+9 | -9 |
| Pacific/Gambier | -9 |
| SystemV/YST9 | -9 |
| SystemV/YST9YDT | -9 |
| US/Alaska | -9 |
| America/Dawson | -8 |
| America/Ensenada | -8 |
| America/Los_Angeles | -8 |
| America/Santa_Isabel | -8 |
| America/Tijuana | -8 |
| America/Vancouver | -8 |
| America/Whitehorse | -8 |
| Canada/Pacific | -8 |
| Canada/Yukon | -8 |
| Etc/GMT+8 | -8 |
| Mexico/BajaNorte | -8 |
| PST | -8 |
| PST8PDT | -8 |
| Pacific/Pitcairn | -8 |
| SystemV/PST8 | -8 |
| SystemV/PST8PDT | -8 |
| US/Pacific | -8 |
| US/Pacific-New | -8 |
| America/Boise | -7 |
| America/Cambridge_Bay | -7 |
| America/Chihuahua | -7 |
| America/Dawson_Creek | -7 |
| America/Denver | -7 |
| America/Edmonton | -7 |
| America/Hermosillo | -7 |
| America/Inuvik | -7 |
| America/Mazatlan | -7 |
| America/Ojinaga | -7 |
| America/Phoenix | -7 |
| America/Shiprock | -7 |
| America/Yellowknife | -7 |
| Canada/Mountain | -7 |
| Etc/GMT+7 | -7 |
| MST | -7 |
| MST7MDT | -7 |
| Mexico/BajaSur | -7 |
| Navajo | -7 |
| PNT | -7 |
| SystemV/MST7 | -7 |
| SystemV/MST7MDT | -7 |
| US/Arizona | -7 |
| US/Mountain | -7 |
| America/Belize | -6 |
| America/Cancun | -6 |
| America/Chicago | -6 |
| America/Costa_Rica | -6 |
| America/El_Salvador | -6 |
| America/Guatemala | -6 |
| America/Indiana/Knox | -6 |
| America/Indiana/Tell_City | -6 |
| America/Knox_IN | -6 |
| America/Managua | -6 |
| America/Matamoros | -6 |
| America/Menominee | -6 |
| America/Merida | -6 |
| America/Mexico_City | -6 |
| America/Monterrey | -6 |
| America/North_Dakota/Center | -6 |
| America/North_Dakota/New_Salem | -6 |
| America/Rainy_River | -6 |
| America/Rankin_Inlet | -6 |
| America/Regina | -6 |
| America/Swift_Current | -6 |
| America/Tegucigalpa | -6 |
| America/Winnipeg | -6 |
| CST | -6 |
| CST6CDT | -6 |
| Canada/Central | -6 |
| Canada/East-Saskatchewan | -6 |
| Canada/Saskatchewan | -6 |
| Chile/EasterIsland | -6 |
| Etc/GMT+6 | -6 |
| Mexico/General | -6 |
| Pacific/Easter | -6 |
| Pacific/Galapagos | -6 |
| SystemV/CST6 | -6 |
| SystemV/CST6CDT | -6 |
| US/Central | -6 |
| US/Indiana-Starke | -6 |
| America/Atikokan | -5 |
| America/Bogota | -5 |
| America/Cayman | -5 |
| America/Coral_Harbour | -5 |
| America/Detroit | -5 |
| America/Fort_Wayne | -5 |
| America/Grand_Turk | -5 |
| America/Guayaquil | -5 |
| America/Havana | -5 |
| America/Indiana/Indianapolis | -5 |
| America/Indiana/Marengo | -5 |
| America/Indiana/Petersburg | -5 |
| America/Indiana/Vevay | -5 |
| America/Indiana/Vincennes | -5 |
| America/Indiana/Winamac | -5 |
| America/Indianapolis | -5 |
| America/Iqaluit | -5 |
| America/Jamaica | -5 |
| America/Kentucky/Louisville | -5 |
| America/Kentucky/Monticello | -5 |
| America/Lima | -5 |
| America/Louisville | -5 |
| America/Montreal | -5 |
| America/Nassau | -5 |
| America/New_York | -5 |
| America/Nipigon | -5 |
| America/Panama | -5 |
| America/Pangnirtung | -5 |
| America/Port-au-Prince | -5 |
| America/Resolute | -5 |
| America/Thunder_Bay | -5 |
| America/Toronto | -5 |
| Canada/Eastern | -5 |
| Cuba | -5 |
| EST | -5 |
| EST5EDT | -5 |
| Etc/GMT+5 | -5 |
| IET | -5 |
| Jamaica | -5 |
| SystemV/EST5 | -5 |
| SystemV/EST5EDT | -5 |
| US/East-Indiana | -5 |
| US/Eastern | -5 |
| US/Michigan | -5 |
| America/Caracas | -4 |
| America/Anguilla | -4 |
| America/Antigua | -4 |
| America/Argentina/San_Luis | -4 |
| America/Aruba | -4 |
| America/Asuncion | -4 |
| America/Barbados | -4 |
| America/Blanc-Sablon | -4 |
| America/Boa_Vista | -4 |
| America/Campo_Grande | -4 |
| America/Cuiaba | -4 |
| America/Curacao | -4 |
| America/Dominica | -4 |
| America/Eirunepe | -4 |
| America/Glace_Bay | -4 |
| America/Goose_Bay | -4 |
| America/Grenada | -4 |
| America/Guadeloupe | -4 |
| America/Guyana | -4 |
| America/Halifax | -4 |
| America/La_Paz | -4 |
| America/Manaus | -4 |
| America/Marigot | -4 |
| America/Martinique | -4 |
| America/Moncton | -4 |
| America/Montserrat | -4 |
| America/Port_of_Spain | -4 |
| America/Porto_Acre | -4 |
| America/Porto_Velho | -4 |
| America/Puerto_Rico | -4 |
| America/Rio_Branco | -4 |
| America/Santiago | -4 |
| America/Santo_Domingo | -4 |
| America/St_Barthelemy | -4 |
| America/St_Kitts | -4 |
| America/St_Lucia | -4 |
| America/St_Thomas | -4 |
| America/St_Vincent | -4 |
| America/Thule | -4 |
| America/Tortola | -4 |
| America/Virgin | -4 |
| Antarctica/Palmer | -4 |
| Atlantic/Bermuda | -4 |
| Atlantic/Stanley | -4 |
| Brazil/Acre | -4 |
| Brazil/West | -4 |
| Canada/Atlantic | -4 |
| Chile/Continental | -4 |
| Etc/GMT+4 | -4 |
| PRT | -4 |
| SystemV/AST4 | -4 |
| SystemV/AST4ADT | -4 |
| America/St_Johns | -3 |
| CNT | -3 |
| Canada/Newfoundland | -3 |
| AGT | -3 |
| America/Araguaina | -3 |
| America/Argentina/Buenos_Aires | -3 |
| America/Argentina/Catamarca | -3 |
| America/Argentina/ComodRivadavia | -3 |
| America/Argentina/Cordoba | -3 |
| America/Argentina/Jujuy | -3 |
| America/Argentina/La_Rioja | -3 |
| America/Argentina/Mendoza | -3 |
| America/Argentina/Rio_Gallegos | -3 |
| America/Argentina/Salta | -3 |
| America/Argentina/San_Juan | -3 |
| America/Argentina/Tucuman | -3 |
| America/Argentina/Ushuaia | -3 |
| America/Bahia | -3 |
| America/Belem | -3 |
| America/Buenos_Aires | -3 |
| America/Catamarca | -3 |
| America/Cayenne | -3 |
| America/Cordoba | -3 |
| America/Fortaleza | -3 |
| America/Godthab | -3 |
| America/Jujuy | -3 |
| America/Maceio | -3 |
| America/Mendoza | -3 |
| America/Miquelon | -3 |
| America/Montevideo | -3 |
| America/Paramaribo | -3 |
| America/Recife | -3 |
| America/Rosario | -3 |
| America/Santarem | -3 |
| America/Sao_Paulo | -3 |
| Antarctica/Rothera | -3 |
| BET | -3 |
| Brazil/East | -3 |
| Etc/GMT+3 | -3 |
| America/Noronha | -2 |
| Atlantic/South_Georgia | -2 |
| Brazil/DeNoronha | -2 |
| Etc/GMT+2 | -2 |
| America/Scoresbysund | -1 |
| Atlantic/Azores | -1 |
| Atlantic/Cape_Verde | -1 |
| Etc/GMT+1 | -1 |
| Africa/Abidjan | 0 |
| Africa/Accra | 0 |
| Africa/Bamako | 0 |
| Africa/Banjul | 0 |
| Africa/Bissau | 0 |
| Africa/Casablanca | 0 |
| Africa/Conakry | 0 |
| Africa/Dakar | 0 |
| Africa/El_Aaiun | 0 |
| Africa/Freetown | 0 |
| Africa/Lome | 0 |
| Africa/Monrovia | 0 |
| Africa/Nouakchott | 0 |
| Africa/Ouagadougou | 0 |
| Africa/Sao_Tome | 0 |
| Africa/Timbuktu | 0 |
| America/Danmarkshavn | 0 |
| Atlantic/Canary | 0 |
| Atlantic/Faeroe | 0 |
| Atlantic/Faroe | 0 |
| Atlantic/Madeira | 0 |
| Atlantic/Reykjavik | 0 |
| Atlantic/St_Helena | 0 |
| Eire | 0 |
| Etc/GMT | 0 |
| Etc/GMT+0 | 0 |
| Etc/GMT-0 | 0 |
| Etc/GMT0 | 0 |
| Etc/Greenwich | 0 |
| Etc/UCT | 0 |
| Etc/UTC | 0 |
| Etc/Universal | 0 |
| Etc/Zulu | 0 |
| Europe/Belfast | 0 |
| Europe/Dublin | 0 |
| Europe/Guernsey | 0 |
| Europe/Isle_of_Man | 0 |
| Europe/Jersey | 0 |
| Europe/Lisbon | 0 |
| Europe/London | 0 |
| GB | 0 |
| GB-Eire | 0 |
| GMT | 0 |
| GMT0 | 0 |
| Greenwich | 0 |
| Iceland | 0 |
| Portugal | 0 |
| UCT | 0 |
| UTC | 0 |
| Universal | 0 |
| WET | 0 |
| Zulu | 0 |
| Africa/Algiers | 1 |
| Africa/Bangui | 1 |
| Africa/Brazzaville | 1 |
| Africa/Ceuta | 1 |
| Africa/Douala | 1 |
| Africa/Kinshasa | 1 |
| Africa/Lagos | 1 |
| Africa/Libreville | 1 |
| Africa/Luanda | 1 |
| Africa/Malabo | 1 |
| Africa/Ndjamena | 1 |
| Africa/Niamey | 1 |
| Africa/Porto-Novo | 1 |
| Africa/Tunis | 1 |
| Africa/Windhoek | 1 |
| Arctic/Longyearbyen | 1 |
| Atlantic/Jan_Mayen | 1 |
| CET | 1 |
| ECT | 1 |
| Etc/GMT-1 | 1 |
| Europe/Amsterdam | 1 |
| Europe/Andorra | 1 |
| Europe/Belgrade | 1 |
| Europe/Berlin | 1 |
| Europe/Bratislava | 1 |
| Europe/Brussels | 1 |
| Europe/Budapest | 1 |
| Europe/Copenhagen | 1 |
| Europe/Gibraltar | 1 |
| Europe/Ljubljana | 1 |
| Europe/Luxembourg | 1 |
| Europe/Madrid | 1 |
| Europe/Malta | 1 |
| Europe/Monaco | 1 |
| Europe/Oslo | 1 |
| Europe/Paris | 1 |
| Europe/Podgorica | 1 |
| Europe/Prague | 1 |
| Europe/Rome | 1 |
| Europe/San_Marino | 1 |
| Europe/Sarajevo | 1 |
| Europe/Skopje | 1 |
| Europe/Stockholm | 1 |
| Europe/Tirane | 1 |
| Europe/Vaduz | 1 |
| Europe/Vatican | 1 |
| Europe/Vienna | 1 |
| Europe/Warsaw | 1 |
| Europe/Zagreb | 1 |
| Europe/Zurich | 1 |
| MET | 1 |
| Poland | 1 |
| ART | 2 |
| Africa/Blantyre | 2 |
| Africa/Bujumbura | 2 |
| Africa/Cairo | 2 |
| Africa/Gaborone | 2 |
| Africa/Harare | 2 |
| Africa/Johannesburg | 2 |
| Africa/Kigali | 2 |
| Africa/Lubumbashi | 2 |
| Africa/Lusaka | 2 |
| Africa/Maputo | 2 |
| Africa/Maseru | 2 |
| Africa/Mbabane | 2 |
| Africa/Tripoli | 2 |
| Asia/Amman | 2 |
| Asia/Beirut | 2 |
| Asia/Damascus | 2 |
| Asia/Gaza | 2 |
| Asia/Istanbul | 2 |
| Asia/Jerusalem | 2 |
| Asia/Nicosia | 2 |
| Asia/Tel_Aviv | 2 |
| CAT | 2 |
| EET | 2 |
| Egypt | 2 |
| Etc/GMT-2 | 2 |
| Europe/Athens | 2 |
| Europe/Bucharest | 2 |
| Europe/Chisinau | 2 |
| Europe/Helsinki | 2 |
| Europe/Istanbul | 2 |
| Europe/Kaliningrad | 2 |
| Europe/Kiev | 2 |
| Europe/Mariehamn | 2 |
| Europe/Minsk | 2 |
| Europe/Nicosia | 2 |
| Europe/Riga | 2 |
| Europe/Simferopol | 2 |
| Europe/Sofia | 2 |
| Europe/Tallinn | 2 |
| Europe/Tiraspol | 2 |
| Europe/Uzhgorod | 2 |
| Europe/Vilnius | 2 |
| Europe/Zaporozhye | 2 |
| Israel | 2 |
| Libya | 2 |
| Turkey | 2 |
| Africa/Addis_Ababa | 3 |
| Africa/Asmara | 3 |
| Africa/Asmera | 3 |
| Africa/Dar_es_Salaam | 3 |
| Africa/Djibouti | 3 |
| Africa/Kampala | 3 |
| Africa/Khartoum | 3 |
| Africa/Mogadishu | 3 |
| Africa/Nairobi | 3 |
| Antarctica/Syowa | 3 |
| Asia/Aden | 3 |
| Asia/Baghdad | 3 |
| Asia/Bahrain | 3 |
| Asia/Kuwait | 3 |
| Asia/Qatar | 3 |
| Asia/Riyadh | 3 |
| EAT | 3 |
| Etc/GMT-3 | 3 |
| Europe/Moscow | 3 |
| Europe/Volgograd | 3 |
| Indian/Antananarivo | 3 |
| Indian/Comoro | 3 |
| Indian/Mayotte | 3 |
| W-SU | 3 |
| Asia/Riyadh87 | 3 |
| Asia/Riyadh88 | 3 |
| Asia/Riyadh89 | 3 |
| Mideast/Riyadh87 | 3 |
| Mideast/Riyadh88 | 3 |
| Mideast/Riyadh89 | 3 |
| Asia/Tehran | 3 |
| Iran | 3 |
| Asia/Baku | 4 |
| Asia/Dubai | 4 |
| Asia/Muscat | 4 |
| Asia/Tbilisi | 4 |
| Asia/Yerevan | 4 |
| Etc/GMT-4 | 4 |
| Europe/Samara | 4 |
| Indian/Mahe | 4 |
| Indian/Mauritius | 4 |
| Indian/Reunion | 4 |
| NET | 4 |
| Asia/Kabul | 4 |
| Antarctica/Davis | 5 |
| Antarctica/Mawson | 5 |
| Asia/Aqtau | 5 |
| Asia/Aqtobe | 5 |
| Asia/Ashgabat | 5 |
| Asia/Ashkhabad | 5 |
| Asia/Dushanbe | 5 |
| Asia/Karachi | 5 |
| Asia/Oral | 5 |
| Asia/Samarkand | 5 |
| Asia/Tashkent | 5 |
| Asia/Yekaterinburg | 5 |
| Etc/GMT-5 | 5 |
| Indian/Kerguelen | 5 |
| Indian/Maldives | 5 |
| PLT | 5 |
| Asia/Calcutta | 5 |
| Asia/Colombo | 5 |
| Asia/Kolkata | 5 |
| IST | 5 |
| Asia/Kathmandu | 5 |
| Asia/Katmandu | 5 |
| Antarctica/Vostok | 6 |
| Asia/Almaty | 6 |
| Asia/Bishkek | 6 |
| Asia/Dacca | 6 |
| Asia/Dhaka | 6 |
| Asia/Novokuznetsk | 6 |
| Asia/Novosibirsk | 6 |
| Asia/Omsk | 6 |
| Asia/Qyzylorda | 6 |
| Asia/Thimbu | 6 |
| Asia/Thimphu | 6 |
| BST | 6 |
| Etc/GMT-6 | 6 |
| Indian/Chagos | 6 |
| Asia/Rangoon | 6 |
| Indian/Cocos | 6 |
| Asia/Bangkok | 7 |
| Asia/Ho_Chi_Minh | 7 |
| Asia/Hovd | 7 |
| Asia/Jakarta | 7 |
| Asia/Krasnoyarsk | 7 |
| Asia/Phnom_Penh | 7 |
| Asia/Pontianak | 7 |
| Asia/Saigon | 7 |
| Asia/Vientiane | 7 |
| Etc/GMT-7 | 7 |
| Indian/Christmas | 7 |
| VST | 7 |
| Asia/Brunei | 8 |
| Asia/Choibalsan | 8 |
| Asia/Chongqing | 8 |
| Asia/Chungking | 8 |
| Asia/Harbin | 8 |
| Asia/Hong_Kong | 8 |
| Asia/Irkutsk | 8 |
| Asia/Kashgar | 8 |
| Asia/Kuala_Lumpur | 8 |
| Asia/Kuching | 8 |
| Asia/Macao | 8 |
| Asia/Macau | 8 |
| Asia/Makassar | 8 |
| Asia/Manila | 8 |
| Asia/Shanghai | 8 |
| Asia/Singapore | 8 |
| Asia/Taipei | 8 |
| Asia/Ujung_Pandang | 8 |
| Asia/Ulaanbaatar | 8 |
| Asia/Ulan_Bator | 8 |
| Asia/Urumqi | 8 |
| Australia/Perth | 8 |
| Australia/West | 8 |
| CTT | 8 |
| Etc/GMT-8 | 8 |
| Hongkong | 8 |
| PRC | 8 |
| Singapore | 8 |
| Australia/Eucla | 8 |
| Asia/Dili | 9 |
| Asia/Jayapura | 9 |
| Asia/Pyongyang | 9 |
| Asia/Seoul | 9 |
| Asia/Tokyo | 9 |
| Asia/Yakutsk | 9 |
| Etc/GMT-9 | 9 |
| JST | 9 |
| Japan | 9 |
| Pacific/Palau | 9 |
| ROK | 9 |
| ACT | 9 |
| Australia/Adelaide | 9 |
| Australia/Broken_Hill | 9 |
| Australia/Darwin | 9 |
| Australia/North | 9 |
| Australia/South | 9 |
| Australia/Yancowinna | 9 |
| AET | 10 |
| Antarctica/DumontDUrville | 10 |
| Asia/Sakhalin | 10 |
| Asia/Vladivostok | 10 |
| Australia/ACT | 10 |
| Australia/Brisbane | 10 |
| Australia/Canberra | 10 |
| Australia/Currie | 10 |
| Australia/Hobart | 10 |
| Australia/Lindeman | 10 |
| Australia/Melbourne | 10 |
| Australia/NSW | 10 |
| Australia/Queensland | 10 |
| Australia/Sydney | 10 |
| Australia/Tasmania | 10 |
| Australia/Victoria | 10 |
| Etc/GMT-10 | 10 |
| Pacific/Guam | 10 |
| Pacific/Port_Moresby | 10 |
| Pacific/Saipan | 10 |
| Pacific/Truk | 10 |
| Pacific/Yap | 10 |
| Australia/LHI | 10 |
| Australia/Lord_Howe | 10 |
| Antarctica/Casey | 11 |
| Asia/Magadan | 11 |
| Etc/GMT-11 | 11 |
| Pacific/Efate | 11 |
| Pacific/Guadalcanal | 11 |
| Pacific/Kosrae | 11 |
| Pacific/Noumea | 11 |
| Pacific/Ponape | 11 |
| SST | 11 |
| Pacific/Norfolk | 11 |
| Antarctica/McMurdo | 12 |
| Antarctica/South_Pole | 12 |
| Asia/Anadyr | 12 |
| Asia/Kamchatka | 12 |
| Etc/GMT-12 | 12 |
| Kwajalein | 12 |
| NST | 12 |
| NZ | 12 |
| Pacific/Auckland | 12 |
| Pacific/Fiji | 12 |
| Pacific/Funafuti | 12 |
| Pacific/Kwajalein | 12 |
| Pacific/Majuro | 12 |
| Pacific/Nauru | 12 |
| Pacific/Tarawa | 12 |
| Pacific/Wake | 12 |
| Pacific/Wallis | 12 |
| NZ-CHAT | 12 |
| Pacific/Chatham | 12 |
| Etc/GMT-13 | 13 |
| Pacific/Enderbury | 13 |
| Pacific/Tongatapu | 13 |
| Etc/GMT-14 | 14 |
| Pacific/Kiritimati | 14 |