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OffsetFromUTC
Unit: IdGlobal
Determines the local timezone offset from UTC.

    function OffsetFromUTC: TDateTime;

Unit
IdGlobal
Return Value
TDateTime - Native date and time value that is the hour offset from UTC.
Description
OffsetFromUTC is a TDateTime function that returns a native date/time value that is the number of hours that the local timezone differs from a date/time expressed in Universal Time Coordinate (UTC).

OffsetFromUTC is often used to determine the time offset for regions and localities that are subject to Daylight Savings Time conventions.

OffsetFromUTC can generate an EIdFailedToRetreiveTimeZoneInfo when the timezone cannot be determined.

Note: On the Linux platform, OffsetFromUTC uses the value in GOffsetFromUTC as the difference from UTC time coordinates.

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