Alaska Time Zone

Most of Alaska uses Alaska Time (AKT), which switches between Alaska Standard Time (AKST, UTC-9) in winter and Alaska Daylight Time (AKDT, UTC-8) in summer. The Aleutian Islands west of 169°30′W use Hawaii-Aleutian Time (HAST, UTC-10). The IANA identifier for most of Alaska is America/Anchorage.

Alaska Standard Time (AKST) is UTC-9 — nine hours behind UTC. During Daylight Saving Time (second Sunday in March to first Sunday in November), Alaska uses AKDT (UTC-8).

Alaska Time (AKST, UTC-9) is 4 hours behind Eastern Standard Time (EST, UTC-5). During DST, AKDT (UTC-8) is 4 hours behind EDT (UTC-4). The 4-hour gap is constant year-round because both zones observe DST on the same dates.

Alaska Time (AKST, UTC-9) is 1 hour behind Pacific Standard Time (PST, UTC-8). During DST, AKDT (UTC-8) is 1 hour behind PDT (UTC-7). The difference is always 1 hour.

Yes. Most of Alaska observes Daylight Saving Time on the standard US schedule: clocks spring forward at 2:00 AM on the second Sunday in March (AKST→AKDT), and fall back at 2:00 AM on the first Sunday in November (AKDT→AKST). The exception is the part of Alaska that uses Hawaii-Aleutian Time (HAST), which also observes DST.