United States Time Zone Abbreviations

Time Zone Abbreviations used in the United States. View individual locations to determine the time zone observed.

United States Time Zone Abbreviations with UTC/GMT Offsets

ABBREVIATION TIME ZONE NAME UTC OFFSET
AST ATLANTIC STANDARD TIME UTC - 4
EST EASTERN STANDARD TIME UTC - 5
EDT EASTERN DAYLIGHT TIME UTC - 4
CST CENTRAL STANDARD TIME UTC - 6
CDT CENTRAL DAYLIGHT TIME UTC - 5
MST MOUNTAIN STANDARD TIME UTC - 7
MDT MOUNTAIN DAYLIGHT TIME UTC - 6
PST PACIFIC STANDARD TIME UTC - 8
PDT PACIFIC DAYLIGHT TIME UTC - 7
AKST ALASKA TIME UTC - 9
AKDT ALASKA DAYLIGHT TIME UTC - 8
HST HAWAII STANDARD TIME UTC - 10
HAST HAWAII-ALEUTIAN STANDARD TIME UTC - 10
HADT HAWAII-ALEUTIAN DAYLIGHT TIME UTC - 9
SST SAMOA STANDARD TIME UTC - 11
SDT SAMOA DAYLIGHT TIME UTC - 10
CHST CHAMORRO STANDARD TIME UTC +10



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