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Valid GMT values

Learn how to calculate the GMT offset value corresponding to your time zone.

Article ID: SLN20594

Here are the most common standard time zones, indexed by the zero hour value.
IndexName of Time ZoneGMT offset
000Eastern Standard TimeGMT -5:00
001Eastern Daylight Saving TimeGMT -4:00
002Central Standard TimeGMT -6:00
003Central Daylight Saving TimeGMT -5:00
004Mountain Standard TimeGMT -7:00
005Mountain Daylight Saving TimeGMT -6:00
006Pacific Standard TimeGMT -8:00
007Pacific Daylight Saving TimeGMT -7:00
008Alaska Standard TimeGMT -9:00
009Hawaii Standard TimeGMT -10:00