Alaska spans multiple time zones and uses both standard and daylight saving time, which can confuse travelers, remote workers, and businesses coordinating with the state. Understanding the local clock helps schedule calls, shipments, and broadcast times accurately.
This guide walks through the current time zone, how it is applied across different regions, and what happens during daylight saving shifts.
| Region | Standard Time | Daylight Saving Time | IANA Time Zone |
|---|---|---|---|
| Most of Alaska | Alaska Standard Time (UTC-9) | Alaska Daylight Time (UTC-8) | America/Anchorage |
| Adak and western Aleutian Islands | Hawaii-Aleutian Standard Time (UTC-10) | Hawaii-Aleutian Daylight Time (UTC-9) | America/Adak |
| Nome (western border region) | Alaska Standard Time (UTC-9) | Alaska Daylight Time (UTC-8) | America/Nome |
| Unorganized borough (no borough seat) | Alaska or Hawaii-Aleutian depending on location | Same as standard, adjusted for daylight saving | Region-specific IANA zone |
Understanding the Alaska Time Zone Landscape
Most of Alaska follows Alaska Time, which is nine hours behind Coordinated Universal Time during standard time and eight hours behind during daylight saving. This zone covers Anchorage, Fairbanks, and the densely populated corridor along the southern coast.
The choice of zone is driven by longitude, population centers, and economic ties, especially with the contiguous United States and Asian markets. Many communities align schedules with Anchorage to simplify communication and transportation.
Federal law allows states to choose their time zones, and Alaska designates its zone by reference to the 135th meridian west. Local governments may further refine observance based on proximity to commercial hubs or neighboring states.
Daylight Saving Time Rules Across Alaska
Daylight saving time in most of Alaska begins on the second Sunday in March and ends on the first Sunday in November, matching the federal pattern. During this period, clocks move forward one hour in spring and back one hour in autumn.
Not every community participates in the shift, and some opt out under state law, leading to small patches of permanent standard time within the broader daylight saving region. Residents in these areas keep a consistent offset year-round.
Travelers should verify local practice before scheduling events, as confusion can arise when neighboring towns follow different rules.
Adak and the Aleutian Islands Time Zone
The westernmost reaches of Alaska, including Adak and the Aleutian Islands, use Hawaii-Aleutian Time. This zone is ten hours behind UTC in standard time and nine hours behind during daylight saving, making it the latest time zone in the country.
Because of the extreme western location, sunset can occur close to midnight in summer, while winter days remain very short. Local schedules often account for this unique daylight profile.
Scheduling with the rest of Alaska requires careful conversion, as the time difference between Adak and Anchorage can be two hours during daylight saving.
Nome and the Bering Strait Region
Nome lies near the boundary between Alaska Standard Time and Hawaii-Aleutian Time, and it officially observes Alaska Standard Time year-round without shifting for daylight saving. This decision aligns transportation and communication with the broader state economy.
The region experiences dramatic seasonal light variation, with nearly 24 hours of daylight in summer and long periods of darkness in winter. Local events and media announcements often reference solar time in addition to clock time.
For visitors crossing the Bering Strait, checking the local time board and asking for confirmation helps avoid missed flights or meetings.
Key Takeaways for Managing Alaska Time
- Most of Alaska uses Alaska Standard Time (UTC-9) and Alaska Daylight Time (UTC-8).
- Adak and the Aleutian Islands use Hawaii-Aleutian Time (UTC-10 / UTC-9).
- Daylight saving time runs from the second Sunday in March to the first Sunday in November.
- A few communities, including parts near Nome, remain on permanent standard time.
- Always verify local observance when scheduling across regions.
- For international coordination, remember that Alaska can be 17 to 19 hours behind East Asia.
- Keep calendar tools and devices set to the correct IANA zone, such as America/Anchorage or America/Adak.
FAQ
Reader questions
Does all of Alaska observe daylight saving time?
No, parts of western Alaska such as Adak follow Hawaii-Aleutian time and change clocks differently, while a few local areas may opt out of the shift entirely.
What time is it in Anchorage when it is noon in New York?
Anchorage is typically four hours behind New York during standard time and three hours behind during daylight saving time in the United States.
Why does Nome not change its clock for daylight saving?
Nome stays on Alaska Standard Time year-round to maintain consistency with transportation schedules and regional communication across the Bering Strait area. During standard time, Alaska is 17 to 19 hours behind East Asia, making early morning in Alaska align with evening in Japan or South Korea, and planning calls around these offsets is essential.