Gets the time zone identifier.
Assembly: mscorlib (in mscorlib.dll)
The time zone identifier is a key string that uniquely identifies a particular time zone. In Windows XP and Windows Vista, it corresponds to the subkeys of the HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Time Zone branch of the registry. It can be passed as a parameter to the FindSystemTimeZoneById method to retrieve a particular time zone from the registry.
If you are defining a custom time zone, you should not assign it an identifier longer than 32 characters because this is the maximum length supported by the Windows registry.
The value of the property is usually, but not always, identical to that of the StandardName property. The identifier of the Coordinated Universal Time zone is UTC.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.