AK time guide

Time Zones in Alaska

Alaska spans Alaska Time and Hawaii-Aleutian Time; the western Aleutian boundary is defined by federal longitude.

2 time zonesSplit-zone jurisdictionObserved statewide

Time-zone coverage

Partial-state coverage

Alaska Time

Most of Alaska uses Alaska Time.

Standard time
AKST · UTC-09:00
Daylight time
AKDT · UTC-08:00
Daylight saving
Observed throughout this zone
IANA identifiers
America/Anchorage, America/Juneau, America/Sitka, America/Metlakatla, America/Yakutat, America/Nome
View all U.S. coverage for Alaska Time

Partial-state coverage

Hawaii-Aleutian Time

The Aleutian Islands west of 169 degrees 30 minutes west longitude use Hawaii-Aleutian Time.

Standard time
HST · UTC-10:00
Daylight time
HDT · UTC-09:00
Daylight saving
Varies within this zone
IANA identifiers
Pacific/Honolulu, America/Adak
View all U.S. coverage for Hawaii-Aleutian Time

Daylight saving time in Alaska

Alaska follows the federal daylight-saving schedule in both of its time-zone areas.

Check an address near a boundary

Time-zone boundaries can follow county lines and local legal definitions rather than a simple east-west line. Check the exact address when timing matters.

Find a time zone by address