GetTimeZoneInformation (Windows CE 5.0)

Send Feedback

This function retrieves the current time-zone parameters. These parameters control the translations between UTC and local time.

DWORDGetTimeZoneInformation(LPTIME_ZONE_INFORMATIONlpTimeZoneInformation );


  • lpTimeZoneInformation
    [out] Pointer to a TIME_ZONE_INFORMATION structure to receive the current time-zone parameters.

Return Values

If the function succeeds, the return value is one of the following values:

Value Description
TIME_ZONE_ID_UNKNOWN The system cannot determine the current time zone. If daylight saving time is not used in the current time zone, this value is returned because there are no transition dates.
TIME_ZONE_ID_STANDARD The system is operating in the range covered by the StandardDate member of the TIME_ZONE_INFORMATION structure.
TIME_ZONE_ID_DAYLIGHT The system is operating in the range covered by the DaylightDatemember of the TIME_ZONE_INFORMATION structure.

If the function fails, the return value is TIME_ZONE_ID_UNKNOWN. To get extended error information, call GetLastError.


All translations between UTC and local time are based on the following formula.

UTC = local time + bias 

The bias is the difference, in minutes, between UTC and local time.

If a call to SetTimeZoneInformation supplies a bias value but no transition date, GetTimeZoneInformation will return either TIME_ZONE_ID_STANDARD or TIME_ZONE_ID_DAYLIGHT.


OS Versions: Windows CE 1.0 and later.
Header: Winbase.h.
Link Library: Coredll.lib.

See Also

Time Functions | SetTimeZoneInformation | TIME_ZONE_INFORMATION | Timer Driver Reference

Send Feedback on this topic to the authors

Feedback FAQs

© 2006 Microsoft Corporation. All rights reserved.