Automatic time zone detection using JavaScript
(-12:00) International Date Line West
(-11:00) Midway Island, Samoa
(-10:00) Hawaii
(-09:00) Alaska
(-08:00) Pacific Time (US & Canada)
(-07:00) Arizona
(-07:00) Mountain Time (US & Canada)
(-06:00) Central America, Saskatchewan
(-06:00) Central Time (US & Canada), Guadalajara, Mexico city
(-05:00) Indiana, Bogota, Lima, Quito, Rio Branco
(-05:00) Eastern time (US & Canada)
(-04:00) Atlantic time (Canada), Manaus, Santiago
(-04:00) Caracas, La Paz
(-03:30) Newfoundland
(-03:00) Greenland, Brasilia, Montevideo
(-03:00) Buenos Aires, Georgetown
(-02:00) Mid-Atlantic
(-01:00) Azores
(-01:00) Cape Verde Is.
(00:00) Casablanca, Monrovia, Reykjavik
(00:00) GMT: Dublin, Edinburgh, Lisbon, London
(+01:00) Amsterdam, Berlin, Rome, Vienna, Prague, Brussels
(+01:00) West Central Africa
(+02:00) Amman, Athens, Istanbul, Beirut, Cairo, Jerusalem
(+02:00) Harare, Pretoria
(+03:00) Baghdad, Moscow, St. Petersburg, Volgograd
(+03:00) Kuwait, Riyadh, Nairobi, Tbilisi
(+03:30) Tehran
(+04:00) Abu Dhadi, Muscat
(+04:00) Baku, Yerevan
(+04:30) Kabul
(+05:00) Ekaterinburg
(+05:00) Islamabad, Karachi, Tashkent
(+05:30) Chennai, Kolkata, Mumbai, New Delhi, Sri Jayawardenepura
(+05:45) Kathmandu
(+06:00) Astana, Dhaka
(+06:00) Almaty, Nonosibirsk
(+06:30) Yangon (Rangoon)
(+07:00) Krasnoyarsk
(+07:00) Bangkok, Hanoi, Jakarta
(+08:00) Beijing, Hong Kong, Singapore, Taipei
(+08:00) Irkutsk, Ulaan Bataar, Perth
(+09:00) Yakutsk
(+09:00) Seoul, Osaka, Sapporo, Tokyo
(+09:30) Darwin
(+09:30) Adelaide
(+10:00) Brisbane, Guam, Port Moresby
(+10:00) Canberra, Melbourne, Sydney, Hobart, Vladivostok
(+11:00) Magadan, Solomon Is., New Caledonia
(+12:00) Auckland, Wellington
(+12:00) Fiji, Kamchatka, Marshall Is.
(+13:00) Nuku'alofa