NET 4.6.2中的萨摩亚标准时间（SST）

Question

From https://www.timeanddate.com/time/zones/sst , the time zone is UTC -11. However, when I get timezone info from .NET. It is the UTC +13.

    var timeZoneInfo = TimeZoneInfo.FindSystemTimeZoneById("Samoa Standard Time");

timeZoneInfo is UTC +13.

How can I get the correct time zone info of Samoa Standard Time (SST) in .Net

Answer 1

Samoa (officially The Independent State of Samoa ) and American Samoa are in two different time zones, on opposite sides of the international date line.

Image source: Wikimedia Commons

• The Independent State of Samoa observes UTC+13 during standard time and UTC+14 during daylight saving time .

  • Its Windows time zone identifier is "Samoa Standard Time"
  • Its IANA time zone identifier is "Pacific/Apia"

• American Samoa observes UTC-11 the whole year .

  • Its Windows time zone identifier is "UTC-11"
  • Its IANA time zone identifier is "Pacific/Pago_Pago"

As always:

• Use Windows identifiers with .NET Framework and .NET Core when running on Windows.
• Use IANA identifiers with .NET Core when running on Linux.
• Use the TimeZoneConverter library to use either form of identifier on either platform.