chuyển đổi datetime từ timezone này sang timezone khác trong .net

by Neon Quach 23. May 2010 17:58

Time là 1 vấn đề yêu cầu chung của các ứng dụng hiện nay, chẳng hạn như khi bạn develop ứng dụng cho Netherlands liên quan đến thời gian hiển thị trên website trên mấy với timezone khác (GMT+07:00) Bangkok, Hanoi, Jakarta) chẳng hạn, đó là vấn đề thường xảy ra, may thay .Net hổ trợ chúng ta việc chuyển đổi qua lại dự trên TimeZone ID.

C# Snippet code
DateTime now = DateTime.Now;
Console.WriteLine(TimeZoneInfo.ConvertTimeBySystemTimeZoneId(now, "SE Asia Standard Time").ToString("yyyy-MM-dd HH-mm-ss"));
Console.Read();

VB.NET Snippet code
Dim now As DateTime = DateTime.Now
Console.WriteLine(TimeZoneInfo.ConvertTimeBySystemTimeZoneId(now, "SE Asia Standard Time").ToString("yyyy-MM-dd HH-mm-ss"))
Console.Read()

Và đây là danh sách các timezone ID được .net support

Time Zone ID	Time Zone Display Name
Morocco Standard Time	(GMT) Casablanca
GMT Standard Time	(GMT) Greenwich Mean Time : Dublin, Edinburgh, Lisbon, London
Greenwich Standard Time	(GMT) Monrovia, Reykjavik
W. Europe Standard Time	(GMT+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna
Central Europe Standard Time	(GMT+01:00) Belgrade, Bratislava, Budapest, Ljubljana, Prague
Romance Standard Time	(GMT+01:00) Brussels, Copenhagen, Madrid, Paris
Central European Standard Time	(GMT+01:00) Sarajevo, Skopje, Warsaw, Zagreb
W. Central Africa Standard Time	(GMT+01:00) West Central Africa
Jordan Standard Time	(GMT+02:00) Amman
GTB Standard Time	(GMT+02:00) Athens, Bucharest, Istanbul
Middle East Standard Time	(GMT+02:00) Beirut
Egypt Standard Time	(GMT+02:00) Cairo
South Africa Standard Time	(GMT+02:00) Harare, Pretoria
FLE Standard Time	(GMT+02:00) Helsinki, Kyiv, Riga, Sofia, Tallinn, Vilnius
Israel Standard Time	(GMT+02:00) Jerusalem
E. Europe Standard Time	(GMT+02:00) Minsk
Namibia Standard Time	(GMT+02:00) Windhoek
Arabic Standard Time	(GMT+03:00) Baghdad
Arab Standard Time	(GMT+03:00) Kuwait, Riyadh
Russian Standard Time	(GMT+03:00) Moscow, St. Petersburg, Volgograd
E. Africa Standard Time	(GMT+03:00) Nairobi
Georgian Standard Time	(GMT+03:00) Tbilisi
Iran Standard Time	(GMT+03:30) Tehran
Arabian Standard Time	(GMT+04:00) Abu Dhabi, Muscat
Azerbaijan Standard Time	(GMT+04:00) Baku
Mauritius Standard Time	(GMT+04:00) Port Louis
Caucasus Standard Time	(GMT+04:00) Yerevan
Afghanistan Standard Time	(GMT+04:30) Kabul
Ekaterinburg Standard Time	(GMT+05:00) Ekaterinburg
Pakistan Standard Time	(GMT+05:00) Islamabad, Karachi
West Asia Standard Time	(GMT+05:00) Tashkent
India Standard Time	(GMT+05:30) Chennai, Kolkata, Mumbai, New Delhi
Sri Lanka Standard Time	(GMT+05:30) Sri Jayawardenepura
Nepal Standard Time	(GMT+05:45) Kathmandu
N. Central Asia Standard Time	(GMT+06:00) Almaty, Novosibirsk
Central Asia Standard Time	(GMT+06:00) Astana, Dhaka
Myanmar Standard Time	(GMT+06:30) Yangon (Rangoon)
SE Asia Standard Time	(GMT+07:00) Bangkok, Hanoi, Jakarta
North Asia Standard Time	(GMT+07:00) Krasnoyarsk
China Standard Time	(GMT+08:00) Beijing, Chongqing, Hong Kong, Urumqi
North Asia East Standard Time	(GMT+08:00) Irkutsk, Ulaan Bataar
Singapore Standard Time	(GMT+08:00) Kuala Lumpur, Singapore
W. Australia Standard Time	(GMT+08:00) Perth
Taipei Standard Time	(GMT+08:00) Taipei
Tokyo Standard Time	(GMT+09:00) Osaka, Sapporo, Tokyo
Korea Standard Time	(GMT+09:00) Seoul
Yakutsk Standard Time	(GMT+09:00) Yakutsk
Cen. Australia Standard Time	(GMT+09:30) Adelaide
AUS Central Standard Time	(GMT+09:30) Darwin
E. Australia Standard Time	(GMT+10:00) Brisbane
AUS Eastern Standard Time	(GMT+10:00) Canberra, Melbourne, Sydney
West Pacific Standard Time	(GMT+10:00) Guam, Port Moresby
Tasmania Standard Time	(GMT+10:00) Hobart
Vladivostok Standard Time	(GMT+10:00) Vladivostok
Central Pacific Standard Time	(GMT+11:00) Magadan, Solomon Is., New Caledonia
New Zealand Standard Time	(GMT+12:00) Auckland, Wellington
Fiji Standard Time	(GMT+12:00) Fiji, Kamchatka, Marshall Is.
Tonga Standard Time	(GMT+13:00) Nuku'alofa
Azores Standard Time	(GMT-01:00) Azores
Cape Verde Standard Time	(GMT-01:00) Cape Verde Is.
Mid-Atlantic Standard Time	(GMT-02:00) Mid-Atlantic
E. South America Standard Time	(GMT-03:00) Brasilia
Argentina Standard Time	(GMT-03:00) Buenos Aires
SA Eastern Standard Time	(GMT-03:00) Georgetown
Greenland Standard Time	(GMT-03:00) Greenland
Montevideo Standard Time	(GMT-03:00) Montevideo
Newfoundland Standard Time	(GMT-03:30) Newfoundland
Atlantic Standard Time	(GMT-04:00) Atlantic Time (Canada)
SA Western Standard Time	(GMT-04:00) La Paz
Central Brazilian Standard Time	(GMT-04:00) Manaus
Pacific SA Standard Time	(GMT-04:00) Santiago
Venezuela Standard Time	(GMT-04:30) Caracas
SA Pacific Standard Time	(GMT-05:00) Bogota, Lima, Quito, Rio Branco
Eastern Standard Time	(GMT-05:00) Eastern Time (US & Canada)
US Eastern Standard Time	(GMT-05:00) Indiana (East)
Central America Standard Time	(GMT-06:00) Central America
Central Standard Time	(GMT-06:00) Central Time (US & Canada)
Central Standard Time (Mexico)	(GMT-06:00) Guadalajara, Mexico City, Monterrey
Canada Central Standard Time	(GMT-06:00) Saskatchewan
US Mountain Standard Time	(GMT-07:00) Arizona
Mountain Standard Time (Mexico)	(GMT-07:00) Chihuahua, La Paz, Mazatlan
Mountain Standard Time	(GMT-07:00) Mountain Time (US & Canada)
Pacific Standard Time	(GMT-08:00) Pacific Time (US & Canada)
Pacific Standard Time (Mexico)	(GMT-08:00) Tijuana, Baja California
Alaskan Standard Time	(GMT-09:00) Alaska
Hawaiian Standard Time	(GMT-10:00) Hawaii
Samoa Standard Time	(GMT-11:00) Midway Island, Samoa
Dateline Standard Time	(GMT-12:00) International Date Line West