What value should I pass into TimeZoneInfo.FindSystemTimeZoneById(String)?

Question

I want to use the TimeZoneInfo.FindSystemTimeZoneById(String) method, but I don\'t know what values to use as the input?

Where can I get a list of values for i

Answer 1

To get the most current list of time zones, use tzutil from Windows:

tzutil /l

Here you can find the official Time Zone Ids list from Microsoft in MSDN: https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/default-time-zones

  ID      |   Time zone name
----------|------------------------
  0       |   Dateline Standard Time
  110     |   UTC-11
  200     |   Hawaiian Standard Time
  300     |   Alaskan Standard Time
  400     |   Pacific Standard Time
  410     |   Pacific Standard Time (Mexico)
  500     |   Mountain Standard Time
  510     |   Mountain Standard Time (Mexico)
  520     |   US Mountain Standard Time
  600     |   Canada Central Standard Time
  610     |   Central America Standard Time
  620     |   Central Standard Time
  630     |   Central Standard Time (Mexico)
  700     |   Eastern Standard Time
  710     |   SA Pacific Standard Time
  720     |   US Eastern Standard Time
  840     |   Venezuela Standard Time
  800     |   Atlantic Standard Time
  810     |   Central Brazilian Standard Time
  820     |   Pacific SA Standard Time
  830     |   SA Western Standard Time
  850     |   Paraguay Standard Time
  900     |   Newfoundland Standard Time
  910     |   E. South America Standard Time
  920     |   Greenland Standard Time
  930     |   Montevideo Standard Time
  940     |   SA Eastern Standard Time
  950     |   Argentina Standard Time
  1000    |   Mid-Atlantic Standard Time
  1010    |   UTC-2
  1100    |   Azores Standard Time
  1110    |   Cabo Verde Standard Time
  1200    |   GMT Standard Time
  1210    |   Greenwich Standard Time
  1220    |   Morocco Standard Time
  1230    |   UTC
  1300    |   Central Europe Standard Time
  1310    |   Central European Standard Time
  1320    |   Romance Standard Time
  1330    |   W. Central Africa Standard Time
  1340    |   W. Europe Standard Time
  1350    |   Namibia Standard Time
  1400    |   E. Europe Standard Time
  1410    |   Egypt Standard Time
  1420    |   FLE Standard Time
  1430    |   GTB Standard Time
  1440    |   Israel Standard Time
  1450    |   Jordan Standard Time
  1460    |   Middle East Standard Time
  1470    |   South Africa Standard Time
  1480    |   Syria Standard Time
  1490    |   Turkey Standard Time
  1500    |   Arab Standard Time
  1510    |   Arabic Standard Time
  1520    |   E. Africa Standard Time
  1530    |   Kaliningrad Standard Time
  1550    |   Iran Standard Time
  1540    |   Russian Standard Time
  1600    |   Arabian Standard Time
  1610    |   Azerbaijan Standard Time
  1620    |   Caucasus Standard Time
  1640    |   Georgian Standard Time
  1650    |   Mauritius Standard Time
  1630    |   Afghanistan Standard Time
  1710    |   West Asia Standard Time
  1750    |   Pakistan Standard Time
  1720    |   India Standard Time
  1730    |   Sri Lanka Standard Time
  1740    |   Nepal Standard Time
  1700    |   Ekaterinburg Standard Time
  1800    |   Central Asia Standard Time
  1830    |   Bangladesh Standard Time
  1820    |   Myanmar Standard Time
  1810    |   N. Central Asia Standard Time
  1910    |   SE Asia Standard Time
  1900    |   North Asia Standard Time
  2000    |   China Standard Time
  2020    |   Singapore Standard Time
  2030    |   Taipei Standard Time
  2040    |   W. Australia Standard Time
  2050    |   Ulaanbaatar Standard Time
  2010    |   North Asia East Standard Time
  2100    |   Korea Standard Time
  2110    |   Tokyo Standard Time
  2130    |   AUS Central Standard Time
  2140    |   Cen. Australia Standard Time
  2120    |   Yakutsk Standard Time
  2200    |   AUS Eastern Standard Time
  2210    |   E. Australia Standard Time
  2220    |   Tasmania Standard Time
  2240    |   West Pacific Standard Time
  2230    |   Vladivostok Standard Time
  2300    |   Central Pacific Standard Time
  2310    |   Magadan Standard Time
  2400    |   Fiji Standard Time
  2410    |   New Zealand Standard Time
  2430    |   UTC+12
  2500    |   Tonga Standard Time
  2510    |   Samoa Standard Time

Answer 2

You can fetch them from a static list in the TimeZoneInfo class

var infos = TimeZoneInfo.GetSystemTimeZones();
foreach (var info in infos)
{
    Console.WriteLine(info.Id);
}

Example:

  var tzInfo = TimeZoneInfo.FindSystemTimeZoneById("New Zealand Standard Time");

Or if you just want a list of the timezone id's like DJ KRAZE suggested

  var timeZoneIds = TimeZoneInfo.GetSystemTimeZones().Select(t => t.Id);

Answer 3

Or you can pass the TimeZoneInfo.Local.Id like this:

TimeZoneInfo tzi = TimeZoneInfo.FindSystemTimeZoneById(TimeZoneInfo.Local.Id);
DateTime localDateTime = TimeZoneInfo.ConvertTimeFromUtc(DateTime.UtcNow, tzi);

Answer 4

Have a look at the static method on TimeZoneInfo called TimeZoneInfo.GetSystemTimeZones() method.

This will return a list of all TimeZoneInfo's on your operating system from the Registry. They are all stored under: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones.

An example is "GMT Standard Time" for the "Dublin, Edinburgh, Lisbon, London" time zone.

Answer 5

Here is the list in Windows 8 (I extracted from Windows Registry)

Afghanistan Standard Time
Alaskan Standard Time
Alaskan Standard Time\Dynamic DST
Arab Standard Time
Arabian Standard Time
Arabic Standard Time
Arabic Standard Time\Dynamic DST
Argentina Standard Time
Argentina Standard Time\Dynamic DST
Atlantic Standard Time
Atlantic Standard Time\Dynamic DST
AUS Central Standard Time
AUS Eastern Standard Time
AUS Eastern Standard Time\Dynamic DST
Azerbaijan Standard Time
Azores Standard Time
Azores Standard Time\Dynamic DST
Bahia Standard Time
Bahia Standard Time\Dynamic DST
Bangladesh Standard Time
Bangladesh Standard Time\Dynamic DST
Canada Central Standard Time
Cape Verde Standard Time
Caucasus Standard Time
Caucasus Standard Time\Dynamic DST
Cen. Australia Standard Time
Cen. Australia Standard Time\Dynamic DST
Central America Standard Time
Central Asia Standard Time
Central Brazilian Standard Time
Central Brazilian Standard Time\Dynamic DST
Central Europe Standard Time
Central European Standard Time
Central Pacific Standard Time
Central Standard Time
Central Standard Time\Dynamic DST
Central Standard Time (Mexico)
China Standard Time
Dateline Standard Time
E. Africa Standard Time
E. Australia Standard Time
E. Europe Standard Time
E. South America Standard Time
E. South America Standard Time\Dynamic DST
Eastern Standard Time
Eastern Standard Time\Dynamic DST
Egypt Standard Time
Egypt Standard Time\Dynamic DST
Ekaterinburg Standard Time
Ekaterinburg Standard Time\Dynamic DST
Fiji Standard Time
Fiji Standard Time\Dynamic DST
FLE Standard Time
Georgian Standard Time
GMT Standard Time
Greenland Standard Time
Greenland Standard Time\Dynamic DST
Greenwich Standard Time
GTB Standard Time
Hawaiian Standard Time
India Standard Time
Iran Standard Time
Iran Standard Time\Dynamic DST
Israel Standard Time
Israel Standard Time\Dynamic DST
Jordan Standard Time
Jordan Standard Time\Dynamic DST
Kaliningrad Standard Time
Kaliningrad Standard Time\Dynamic DST
Kamchatka Standard Time
Korea Standard Time
Libya Standard Time
Libya Standard Time\Dynamic DST
Magadan Standard Time
Magadan Standard Time\Dynamic DST
Mauritius Standard Time
Mauritius Standard Time\Dynamic DST
Mid-Atlantic Standard Time
Middle East Standard Time
Middle East Standard Time\Dynamic DST
Montevideo Standard Time
Montevideo Standard Time\Dynamic DST
Morocco Standard Time
Morocco Standard Time\Dynamic DST
Mountain Standard Time
Mountain Standard Time\Dynamic DST
Mountain Standard Time (Mexico)
Myanmar Standard Time
N. Central Asia Standard Time
N. Central Asia Standard Time\Dynamic DST
Namibia Standard Time
Namibia Standard Time\Dynamic DST
Nepal Standard Time
New Zealand Standard Time
New Zealand Standard Time\Dynamic DST
Newfoundland Standard Time
Newfoundland Standard Time\Dynamic DST
North Asia East Standard Time
North Asia East Standard Time\Dynamic DST
North Asia Standard Time
North Asia Standard Time\Dynamic DST
Pacific SA Standard Time
Pacific SA Standard Time\Dynamic DST
Pacific Standard Time
Pacific Standard Time\Dynamic DST
Pacific Standard Time (Mexico)
Pakistan Standard Time
Pakistan Standard Time\Dynamic DST
Paraguay Standard Time
Paraguay Standard Time\Dynamic DST
Romance Standard Time
Russian Standard Time
Russian Standard Time\Dynamic DST
SA Eastern Standard Time
SA Pacific Standard Time
SA Western Standard Time
Samoa Standard Time
Samoa Standard Time\Dynamic DST
SE Asia Standard Time
Singapore Standard Time
South Africa Standard Time
Sri Lanka Standard Time
Syria Standard Time
Syria Standard Time\Dynamic DST
Taipei Standard Time
Tasmania Standard Time
Tasmania Standard Time\Dynamic DST
Tokyo Standard Time
Tonga Standard Time
Turkey Standard Time
Turkey Standard Time\Dynamic DST
Ulaanbaatar Standard Time
US Eastern Standard Time
US Eastern Standard Time\Dynamic DST
US Mountain Standard Time
UTC
UTC+12
UTC-02
UTC-11
Venezuela Standard Time
Venezuela Standard Time\Dynamic DST
Vladivostok Standard Time
Vladivostok Standard Time\Dynamic DST
W. Australia Standard Time
W. Australia Standard Time\Dynamic DST
W. Central Africa Standard Time
W. Europe Standard Time
West Asia Standard Time
West Pacific Standard Time
Yakutsk Standard Time
Yakutsk Standard Time\Dynamic DST

Answer 6

The latest Microsoft documentation, with a list of these, can be found at https://support.microsoft.com/en-gb/help/973627/microsoft-time-zone-index-values

The time zone ID strings are currently as follows (if you want to see the actual time difference of see the hex index for each time zone ID then click the above link):

Samoa Standard Time

Alaskan Standard Time

Mountain Standard Time

U.S. Mountain Standard Time

Canada Central Standard Time

Central America Standard Time

U.S. Eastern Standard Time

Atlantic Standard Time

Pacific S.A. Standard Time

E. South America Standard Time

Greenland Standard Time

Azores Standard Time

GMT Standard Time

Central Europe Standard Time

Romance Standard Time

W. Central Africa Standard Time

Egypt Standard Time

GTB Standard Time

South Africa Standard Time

Arab Standard Time

Arabic Standard Time

Arabian Standard Time

Transitional Islamic State of Afghanistan Standard Time

West Asia Standard Time

Nepal Standard Time

Sri Lanka Standard Time

Myanmar Standard Time

North Asia Standard Time

Singapore Standard Time

W. Australia Standard Time

Korea Standard Time

Yakutsk Standard Time

Cen. Australia Standard Time

E. Australia Standard Time

Vladivostok Standard Time

Central Pacific Standard Time

New Zealand Standard Time

Azerbaijan Standard Time 

Jordan Standard Time

Mountain Standard Time (Mexico)

Namibia Standard Time

Central Brazilian Standard Time

Armenian Standard Time

Argentina Standard Time

Pakistan Standard Time

UTC

Kamchatka Standard Time