Timezones

The time(), timefmt() and convsecs() functions have an optional time zone argument that’s used for formatting the time. Without this time zone specified, the one the game’s server is running under is used.

If the time zone argument is a dbref, the contents of that object’s @TZ attribute is used as the zone. The attribute is not evaluated. If the object doesn’t have this attribute, the server’s time zone will be used.

If it’s the string ‘UTC’, that time zone is used instead of the local one. If it’s a number between -24 and +24, it adds that many hours from UTC/GMT. Fractional times are supported, e.g., -1.5 hours.

If the MUSH supports it (See @config compile), symbolic time zone names can also be used.

valid(timezone, <tz>) tests if <tz> can be used as a timezone.

The following catalog is a preserved historical snapshot, not the server’s current list. Use valid(timezone,<tz>) to check a name against the installed timezone data. The current IANA database is available at https://www.iana.org/time-zones.

Historical IANA catalog (2011n)

This is a list of IANA time zones names as of version 2011n of their database. See http://www.iana.org/time-zones for more information and sources.

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/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/Riyadh87
Asia/Riyadh88 Asia/Riyadh89

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
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
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
Factory GB
GB-Eire GMT
GMT+0 GMT-0
GMT0 Greenwich
Hongkong HST
Iceland Indian/Antananarivo
Indian/Chagos Indian/Christmas
Indian/Cocos Indian/Comoro
Indian/Kerguelen Indian/Mahe
Indian/Maldives Indian/Mauritius
Indian/Mayotte Indian/Reunion
Iran Israel
Jamaica Japan

Kwajalein Libya
MET Mexico/BajaNorte
Mexico/BajaSur Mexico/General
Mideast/Riyadh87 Mideast/Riyadh88
Mideast/Riyadh89 MST
MST7MDT Navajo
NZ NZ-CHAT
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
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