Reputation: 65077
What value should I pass into TimeZoneInfo.FindSystemTimeZoneById(String)?
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 id required for FindSystemTimeZoneById?
Upvotes: 119
Views: 111850
Answers (11)
Reputation: 7165
A method to convert from one time zone to another:
DateTime n = TimeZoneInfo.ConvertTimeBySystemTimeZoneId(datetime, "sourceTimeZoneId", "destinationTimeZoneId");
I'm on Win10, and I list Time Zone Id with time difference:
Dateline Standard Time -12
UTC-11 -11
Hawaiian Standard Time -10
Aleutian Standard Time -9
Marquesas Standard Time -9
UTC-09 -9
Alaskan Standard Time -8
UTC-08 -8
Pacific Standard Time (Mexico) -7
Pacific Standard Time -7
US Mountain Standard Time -7
Mountain Standard Time (Mexico) -6
Mountain Standard Time -6
Central America Standard Time -6
Easter Island Standard Time -6
Canada Central Standard Time -6
Central Standard Time -5
Central Standard Time (Mexico) -5
SA Pacific Standard Time -5
Eastern Standard Time (Mexico) -5
Eastern Standard Time -4
Haiti Standard Time -4
Cuba Standard Time -4
US Eastern Standard Time -4
Turks And Caicos Standard Time -4
Paraguay Standard Time -4
Venezuela Standard Time -4
Central Brazilian Standard Time -4
SA Western Standard Time -4
Pacific SA Standard Time -4
Atlantic Standard Time -3
Tocantins Standard Time -3
E. South America Standard Time -3
SA Eastern Standard Time -3
Argentina Standard Time -3
Montevideo Standard Time -3
Magallanes Standard Time -3
Bahia Standard Time -3
Newfoundland Standard Time -2
Greenland Standard Time -2
Saint Pierre Standard Time -2
UTC-02 -2
Mid-Atlantic Standard Time -1
Cape Verde Standard Time -1
Azores Standard Time 0
UTC 0
Greenwich Standard Time 0
Sao Tome Standard Time 0
GMT Standard Time +1
Morocco Standard Time +1
W. Central Africa Standard Time +1
W. Europe Standard Time +2
Central Europe Standard Time +2
Romance Standard Time +2
Central European Standard Time +2
Egypt Standard Time +2
South Africa Standard Time +2
Kaliningrad Standard Time +2
Sudan Standard Time +2
Libya Standard Time +2
Namibia Standard Time +2
Jordan Standard Time +3
GTB Standard Time +3
Middle East Standard Time +3
E. Europe Standard Time +3
Syria Standard Time +3
West Bank Standard Time +3
FLE Standard Time +3
Israel Standard Time +3
Arabic Standard Time +3
Turkey Standard Time +3
Arab Standard Time +3
Belarus Standard Time +3
Russian Standard Time +3
E. Africa Standard Time +3
Iran Standard Time +4
Arabian Standard Time +4
Astrakhan Standard Time +4
Azerbaijan Standard Time +4
Russia Time Zone 3 +4
Mauritius Standard Time +4
Saratov Standard Time +4
Georgian Standard Time +4
Volgograd Standard Time +4
Caucasus Standard Time +4
Afghanistan Standard Time +4
West Asia Standard Time +5
Ekaterinburg Standard Time +5
Pakistan Standard Time +5
Qyzylorda Standard Time +5
India Standard Time +5
Sri Lanka Standard Time +5
Nepal Standard Time +5
Central Asia Standard Time +6
Bangladesh Standard Time +6
Omsk Standard Time +6
Myanmar Standard Time +6
SE Asia Standard Time +7
Altai Standard Time +7
W. Mongolia Standard Time +7
North Asia Standard Time +7
N. Central Asia Standard Time +7
Tomsk Standard Time +7
China Standard Time +8
North Asia East Standard Time +8
Singapore Standard Time +8
W. Australia Standard Time +8
Taipei Standard Time +8
Ulaanbaatar Standard Time +8
Aus Central W. Standard Time +8
Transbaikal Standard Time +9
Tokyo Standard Time +9
North Korea Standard Time +9
Korea Standard Time +9
Yakutsk Standard Time +9
Cen. Australia Standard Time +9
AUS Central Standard Time +9
E. Australia Standard Time +10
AUS Eastern Standard Time +10
West Pacific Standard Time +10
Tasmania Standard Time +10
Vladivostok Standard Time +10
Lord Howe Standard Time +10
Bougainville Standard Time +11
Russia Time Zone 10 +11
Magadan Standard Time +11
Norfolk Standard Time +11
Sakhalin Standard Time +11
Central Pacific Standard Time +11
Russia Time Zone 11 +12
New Zealand Standard Time +12
UTC+12 +12
Fiji Standard Time +12
Chatham Islands Standard Time +12
Kamchatka Standard Time +13
UTC+13 +13
Tonga Standard Time +13
Samoa Standard Time +13
Line Islands Standard Time +14
Code to get time difference:
DateTime dt = Convert.ToDateTime("2020-04-17T09:00:00");
Dictionary<string, int> zoneHour = new Dictionary<string, int>();
var infos = TimeZoneInfo.GetSystemTimeZones();
foreach (var info in infos)
{
zoneHour.Add(info.Id,
TimeZoneInfo.ConvertTimeBySystemTimeZoneId(dt, "UTC", info.Id).Subtract(dt).Hours
);
}
var zoneHourOrder = zoneHour.OrderBy(z => z.Value);
foreach (var kv in zoneHourOrder)
{
Console.WriteLine(kv.Key.PadRight(40) + (kv.Value > 0 ? "+" + kv.Value : kv.Value.ToString()));
}
Upvotes: 3
Reputation: 11867
What value should I pass into TimeZoneInfo.FindSystemTimeZoneById(String)?
The answer is it depends. Windows and MacOS/Linux have different id's for these.
Where can I get a list of values for id required for FindSystemTimeZoneById?
I think MacOS/Linux uses the IANA id's, which you can find listed on NodaTime docs, or I guess you can find them somewhere on IANA official docs. For Windows id's, check out Microsoft Time Zone Index Values
Example
Running the follow code on my Macbook is fine var europeSthlm = TimeZoneInfo.FindSystemTimeZoneById("Europe/Stockholm");
Whereas running var wEuropeStdTime = TimeZoneInfo.FindSystemTimeZoneById("W. Europe Standard Time"); throws a System.TimeZoneNotFoundException: The time zone ID 'W. Europe Standard Time' was not found on the local computer.
Further reading
Here you can see how you can retrieve a list of time zones by using NodaTime, and how to get the id's on Windows and Mac respectively: https://stackoverflow.com/a/19697827/2874896
Upvotes: 1
Reputation: 476
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://learn.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
Upvotes: 8
Reputation: 179
You can use that code below
using System;
namespace TimeZoneIds
{
class Program
{
static void Main(string[] args)
{
foreach (TimeZoneInfo z in TimeZoneInfo.GetSystemTimeZones())
Console.WriteLine(z.Id);
}
}
}
Upvotes: 1
Reputation: 2834
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
Upvotes: 4
Reputation: 461
The available timezones are:
Console.WriteLine(string.Join("\n",TimeZoneInfo.GetSystemTimeZones().Select(x=>x.Id)));
Result:
Dateline Standard Time
UTC-11
Aleutian Standard Time
Hawaiian Standard Time
Marquesas Standard Time
Alaskan Standard Time
UTC-09
Pacific Standard Time (Mexico)
UTC-08
Pacific Standard Time
US Mountain Standard Time
Mountain Standard Time (Mexico)
Mountain Standard Time
Central America Standard Time
Central Standard Time
Easter Island Standard Time
Central Standard Time (Mexico)
Canada Central Standard Time
SA Pacific Standard Time
Eastern Standard Time (Mexico)
Eastern Standard Time
Haiti Standard Time
Cuba Standard Time
US Eastern Standard Time
Paraguay Standard Time
Atlantic Standard Time
Venezuela Standard Time
Central Brazilian Standard Time
SA Western Standard Time
Pacific SA Standard Time
Turks And Caicos Standard Time
Newfoundland Standard Time
Tocantins Standard Time
E. South America Standard Time
SA Eastern Standard Time
Argentina Standard Time
Greenland Standard Time
Montevideo Standard Time
Saint Pierre Standard Time
Bahia Standard Time
UTC-02
Mid-Atlantic Standard Time
Azores Standard Time
Cape Verde Standard Time
UTC
Morocco Standard Time
GMT Standard Time
Greenwich Standard Time
W. Europe Standard Time
Central Europe Standard Time
Romance Standard Time
Central European Standard Time
W. Central Africa Standard Time
Namibia Standard Time
Jordan Standard Time
GTB Standard Time
Middle East Standard Time
Egypt Standard Time
E. Europe Standard Time
Syria Standard Time
West Bank Standard Time
South Africa Standard Time
FLE Standard Time
Israel Standard Time
Kaliningrad Standard Time
Libya Standard Time
Arabic Standard Time
Turkey Standard Time
Arab Standard Time
Belarus Standard Time
Russian Standard Time
E. Africa Standard Time
Iran Standard Time
Arabian Standard Time
Astrakhan Standard Time
Azerbaijan Standard Time
Russia Time Zone 3
Mauritius Standard Time
Georgian Standard Time
Caucasus Standard Time
Afghanistan Standard Time
West Asia Standard Time
Ekaterinburg Standard Time
Pakistan Standard Time
India Standard Time
Sri Lanka Standard Time
Nepal Standard Time
Central Asia Standard Time
Bangladesh Standard Time
Omsk Standard Time
Myanmar Standard Time
SE Asia Standard Time
Altai Standard Time
W. Mongolia Standard Time
North Asia Standard Time
N. Central Asia Standard Time
Tomsk Standard Time
China Standard Time
North Asia East Standard Time
Singapore Standard Time
W. Australia Standard Time
Taipei Standard Time
Ulaanbaatar Standard Time
North Korea Standard Time
Aus Central W. Standard Time
Transbaikal Standard Time
Tokyo Standard Time
Korea Standard Time
Yakutsk Standard Time
Cen. Australia Standard Time
AUS Central Standard Time
E. Australia Standard Time
AUS Eastern Standard Time
West Pacific Standard Time
Tasmania Standard Time
Vladivostok Standard Time
Lord Howe Standard Time
Bougainville Standard Time
Russia Time Zone 10
Magadan Standard Time
Norfolk Standard Time
Sakhalin Standard Time
Central Pacific Standard Time
Russia Time Zone 11
New Zealand Standard Time
UTC+12
Fiji Standard Time
Kamchatka Standard Time
Chatham Islands Standard Time
Tonga Standard Time
Samoa Standard Time
Line Islands Standard Time
Upvotes: 22
Reputation: 1641
Or you can pass the TimeZoneInfo.Local.Id like this:
TimeZoneInfo tzi = TimeZoneInfo.FindSystemTimeZoneById(TimeZoneInfo.Local.Id);
DateTime localDateTime = TimeZoneInfo.ConvertTimeFromUtc(DateTime.UtcNow, tzi);
Upvotes: 1
Reputation: 31
Like others have said, you can find the list by iterating TimeZoneInfo.GetSystemTimeZones() to find the string you want to use. That said, if you only have information on the time difference (like GMT+9 or GMT-10 ) and cannot find your timezone after iterating the Timezones, you might want to see the following url to see which timezone do you need
https://msdn.microsoft.com/en-US/library/ms912391(v=winembedded.11).aspx
Upvotes: 2
Reputation: 2650
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
Upvotes: 118
Reputation: 43596
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);
Upvotes: 49
Reputation: 52788
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.
Upvotes: 11
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