/// The system cannot determine the current time zone. This error is also returned if you call the SetTimeZoneInformation function and supply the bias values but no transition dates.

/// The SetTimeZoneInformation function sets the current time-zone parameters.

private static extern bool SetTimeZoneInformation([In] ref TimeZoneInformation lpTimeZoneInformation);

SetTimeZoneInformation(ref tzi);

2: SetTimeZoneInformation

Summary

The SetTimeZoneInformation function sets the current time-zone parameters. These parameters control translations from Coordinated Universal Time (UTC) to local time.

static extern bool SetTimeZoneInformation([In] ref TIME_ZONE_INFORMATION

/// The system cannot determine the current time zone. This error is also returned if you call the SetTimeZoneInformation function and supply the bias values but no transition dates.

/// The SetTimeZoneInformation function sets the current time-zone parameters.

private static extern bool SetTimeZoneInformation([In] ref TimeZoneInformation lpTimeZoneInformation);

SetTimeZoneInformation(ref tzi);

Documentation

[SetTimeZoneInformation] on MSDN

Structures

3: TIME_ZONE_INFORMATION

Summary

Use this structure to programmatically get and set the current time zone of a computer in conjunction with the kernel32.dll SDK functions GetTimeZoneInformation and SetTimeZoneInformation.

advapi32

4: AdjustTokenPrivileges

//This snippet is tested on WinXP and Vista, only needed in Vista when using SetTimeZoneInformation

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