Supported Olson time zones

Africa/Cairo
Africa/Casablanca
Africa/Harare
Africa/Luanda
Africa/Nairobi
Africa/Windhoek
America/Anchorage
America/Argentina/Buenos_Aires
America/Asuncion
America/Bahia
America/Bogota
America/Buenos_Aires
America/Caracas
America/Chicago
America/Chihuahua
America/Denver
America/Godthab
America/Guyana
America/Halifax
America/Indianapolis
America/Los_Angeles
America/Manaus
America/Mexico_City
America/Montevideo
America/New_York
America/Phoenix
America/Regina
America/Santiago
America/Sao_Paulo
America/St_Johns
America/Swift_Current
America/Tijuana
Antarctica/Palmer
Asia/Almaty
Asia/Amman
Asia/Baghdad
Asia/Baku
Asia/Bangkok
Asia/Beirut
Asia/Calcutta
Asia/Colombo
Asia/Damascus
Asia/Dhaka
Asia/Irkutsk
Asia/Jerusalem
Asia/Kabul
Asia/Kamchatka
Asia/Karachi
Asia/Katmandu
Asia/Krasnoyarsk
Asia/Magadan
Asia/Muscat
Asia/Novosibirsk
Asia/Rangoon
Asia/Riyadh
Asia/Seoul
Asia/Shanghai
Asia/Singapore
Asia/Taipei
Asia/Tbilisi
Asia/Tehran
Asia/Tokyo
Asia/Ulaanbaatar
Asia/Vladivostok
Asia/Yakutsk
Asia/Yekaterinburg
Asia/Yerevan
Atlantic/Azores
Atlantic/Cape_Verde
Atlantic/South_Georgia
Australia/Adelaide
Australia/Brisbane
Australia/Darwin
Australia/Hobart
Australia/Perth
Australia/Sydney
Etc/GMT-11
Etc/GMT-2
Etc/GMT+12
Europe/Athens
Europe/Berlin
Europe/Helsinki
Europe/Kaliningrad
Europe/London
Europe/Minsk
Europe/Moscow
Europe/Paris
Europe/Prague
Europe/Sarajevo
GMT
GMT-1200
Indian/Mauritius
Pacific/Apia
Pacific/Auckland
Pacific/Fiji
Pacific/Guadalcanal
Pacific/Guam
Pacific/Honolulu
Pacific/Tongatapu
UTC