Function

gmt( datetime, timezone )

Subtracts a time zone offset from a given Date and Time.

Parameters

Returns

Date and Time

Usage considerations

This function does not store a time zone offset with the returned value.

The datetime parameter accepts date values, date and time values, and process properties such as pp!starttime.

The timezone parameter accepts four formats of input:

• Time zone IDs, such as America/Denver.
• Time zone acronyms, such as MST.
• Hours and minutes offset from a GMT date and time, such as GMT-06:00.
• Minutes offset, such as -30.

Time zone IDs, time zone acronyms, and GMT offsets must be enclosed in quotation marks (""). If a timezone is not passed, the time zone of the current context is used.

Passing a time zone ID (such as "Asia/Tokyo") causes the result to be adjusted for daylight saving time. Passing a time zone acronym (such as "GMT") does not cause the result to be adjusted for daylight saving time.

Examples

Use a specific offset

Offset using a time zone ID

1
gmt(datetime(2022, 11, 11, 4, 30), "Europe/Helsinki")

Returns 11/11/2022 2:30 AM GMT+00:00. The +2 hour offset was subtracted from the GMT time, and the time zone was not changed from GMT.

Offset using a GMT offset

1
gmt(datetime(2022, 11, 11, 4, 30), "GMT+02:00")

Returns 11/11/2022 2:30 AM GMT+00:00.

Offset using minutes

1
gmt(datetime(2022, 11, 11, 4, 30), "120")

Returns 11/11/2022 2:30 AM GMT+00:00.

Offset using the current context

1
gmt(datetime(2022, 11, 11, 4, 30))

Returns 11/11/2022 4:30 AM GMT+04:00 provided that the time zone of the current context is GMT+4. The GMT time of 12:30 AM is offset by -4 hours. This GMT time is then displayed to the user as 4:30 AM GMT+4 in the current context.

Feature compatibility