timezoneapi.h header

This header is used by System Services. For more information, see:

timezoneapi.h contains the following programming interfaces:

Functions

 
EnumDynamicTimeZoneInformation

Enumerates DYNAMIC_TIME_ZONE_INFORMATION entries stored in the registry.
FileTimeToSystemTime

Converts a file time to system time format. System time is based on Coordinated Universal Time (UTC).
GetDynamicTimeZoneInformation

Retrieves the current time zone and dynamic daylight saving time settings. These settings control the translations between Coordinated Universal Time (UTC) and local time.
GetDynamicTimeZoneInformationEffectiveYears

Gets a range, expressed in years, for which a DYNAMIC_TIME_ZONE_INFORMATION has valid entries.
GetTimeZoneInformation

Retrieves the current time zone settings. These settings control the translations between Coordinated Universal Time (UTC) and local time.
GetTimeZoneInformationForYear

Retrieves the time zone settings for the specified year and time zone. These settings control the translations between Coordinated Universal Time (UTC) and local time.
SetDynamicTimeZoneInformation

Sets the current time zone and dynamic daylight saving time settings. These settings control translations from Coordinated Universal Time (UTC) to local time.
SetTimeZoneInformation

Sets the current time zone settings. These settings control translations from Coordinated Universal Time (UTC) to local time.
SystemTimeToFileTime

Converts a system time to file time format. System time is based on Coordinated Universal Time (UTC).
SystemTimeToTzSpecificLocalTime

Converts a time in Coordinated Universal Time (UTC) to a specified time zone's corresponding local time.
SystemTimeToTzSpecificLocalTimeEx

Converts a time in Coordinated Universal Time (UTC) with dynamic daylight saving time settings to a specified time zone's corresponding local time.
TzSpecificLocalTimeToSystemTime

Converts a local time to a time in Coordinated Universal Time (UTC).
TzSpecificLocalTimeToSystemTimeEx

Converts a local time to a time with dynamic daylight saving time settings to Coordinated Universal Time (UTC).

Structures

 
DYNAMIC_TIME_ZONE_INFORMATION

Specifies settings for a time zone and dynamic daylight saving time.
TIME_ZONE_INFORMATION

Specifies settings for a time zone.