Alaska Standard Time (AKST) - Time Zone

What Is Alaska Standard Time (AKST)?

Alaska Standard Time (AKST) is the time zone used across nearly all of Alaska. It sits nine hours behind Coordinated Universal Time, at a fixed offset of UTC−9.

When daylight saving time kicks in, Alaska switches to Alaska Daylight Time (AKDT), which is UTC−8. The switch happens on the second Sunday in March (clocks spring forward at 2:00 AM to 3:00 AM) and ends on the first Sunday in November (clocks fall back at 2:00 AM to 1:00 AM). Here's a quirk: Alaska actually spends more of the year on daylight saving time than standard time — roughly eight months on AKDT versus four on AKST.

Geographic Coverage

Alaska Standard Time covers almost the entire state of Alaska — everything east of 169°30′ W longitude. That includes Anchorage, Fairbanks, Juneau, and the vast majority of Alaska's population. The only exception is the western Aleutian Islands (west of that longitude line), which observe Hawaii-Aleutian Time (UTC−10) instead.

The time zone is based on the 135th meridian west, which runs through southeastern Alaska near Juneau. But here's the thing: Alaska is enormous. The state spans nearly 58 degrees of longitude — almost as wide as the entire Lower 48. Cramming all of that into one time zone creates some serious distortions. At the western edge of the Alaska Time Zone, solar noon doesn't hit until nearly 2:18 PM on the clock. In Juneau, by contrast, solar noon falls around 11:57 AM — pretty close to actual noon.

When compared to neighboring time zones:

• AKST is one hour behind Pacific Standard Time (UTC−8).

• AKST is one hour ahead of Hawaii-Aleutian Standard Time (UTC−10).

• AKST is four hours behind Eastern Standard Time (UTC−5).

10 Largest Cities in the Alaska Time Zone

Historical Background

Alaska's time zone history is surprisingly chaotic. Before 1983, the state was split across four different time zones: Pacific (covering the southeast panhandle including Juneau), Yukon (a small slice including Yakutat), Alaska-Hawaii (most of the interior including Anchorage and Fairbanks), and Bering (Nome and the western Aleutians). Postcards used to brag about Alaska spanning four time zones.

That changed on September 15, 1983, when Secretary of Transportation Elizabeth Dole signed a plan to consolidate Alaska down to just two time zones. The change took effect on October 30, 1983. The goal was simple: make it easier for businesses, government, and residents to communicate across the state. Before consolidation, the state capital in Juneau was two hours ahead of Anchorage and Fairbanks — creating headaches for anyone trying to coordinate between regions.

The 1983 consolidation moved about 90% of Alaska's population into a single time zone. Juneau shifted from Pacific Time to Alaska Time, putting it on the same clock as Anchorage. The zone was initially still called "Yukon Time" but was renamed "Alaska Time" in 1984 after Canada's Yukon Territory switched to Pacific Time.

Alaska Standard Time vs Alaska Daylight Time

AKST and AKDT are not interchangeable — they represent two different time offsets:

• Alaska Standard Time (AKST): UTC−9, used from early November to mid-March.

• Alaska Daylight Time (AKDT): UTC−8, used from mid-March to early November.

The switch follows the US standard schedule:

• Spring forward: Second Sunday in March at 2:00 AM (clocks move to 3:00 AM)

• Fall back: First Sunday in November at 2:00 AM (clocks move to 1:00 AM)

Alaska spends about eight months of the year on AKDT, so despite "standard" being in the name, AKST is actually the less common setting.

The Midnight Sun and Polar Night

Alaska's extreme latitude creates dramatic swings in daylight—and no time zone can change that.

On the summer solstice, Anchorage gets about 19.5 hours of direct sunlight, but civil twilight lasts through the night, giving roughly 22 hours of functional daylight. Fairbanks, further north, gets 70 consecutive days of 24-hour usable light. In Utqiaġvik (formerly Barrow), the sun doesn't set at all for about 84 days. Alaskans celebrate with baseball games played at midnight — without stadium lights.

The flip side hits in winter. On the winter solstice, Anchorage gets only about 5.5 hours of daylight. In Utqiaġvik, the sun doesn't rise at all for about 65 days.

Practical Uses of Alaska Standard Time

AKST shapes several key aspects of life in the Last Frontier:

Oil and Gas Operations: Alaska's North Slope oil fields, centered around Prudhoe Bay (the largest oil field in North America), run on Alaska Time. Shift changes, equipment deliveries, and pipeline operations all coordinate around AKST/AKDT.

Commercial Fishing: Alaska produces about 60% of all wild-caught seafood in the United States. Fishing schedules, processing shifts, and market timing all depend on Alaska Time. The Port of Kodiak is one of the busiest fishing ports in the nation.

Tourism: Nearly 2 million visitors arrive annually, many on cruise ships. Shore excursions, whale watching, and glacier flights all run on Alaska Time — and tourists quickly learn that "evening" can mean broad daylight.

Aviation: Ted Stevens Anchorage International Airport is a major cargo hub on the great circle route between Asia and North America, with freight operations running around the clock.

Government and Military: Multiple military installations coordinate with Washington, DC (four hours ahead), requiring constant attention to time differences.

Common Confusions and Mistakes

Several errors pop up regularly with Alaska Standard Time:

• Mixing up AKST and AKDT: Alaska is on AKST for only about four months. The rest of the year, it's AKDT.

• Forgetting the Aleutians: The western Aleutian Islands use Hawaii-Aleutian Time, not Alaska Time. That's an hour behind the rest of the state.

• Assuming Alaska matches Hawaii: Hawaii is in the same time zone as the western Aleutians, but most of Alaska is an hour ahead of Hawaii.

• Confusing with other "A" time zones: AKST (UTC−9) is completely different from AST (Atlantic Standard Time, UTC−4). They're 5 hours apart.

• Underestimating the time gap from the East Coast: Alaska is four hours behind New York during standard time and still four hours behind during daylight saving time (since both regions switch).

How to Convert Alaska Standard Time

Converting Alaska Time requires knowing whether daylight saving time is in effect:

During Standard Time (AKST, roughly Nov–Mar):

• AKST to UTC: Add 9 hours (Example: 10:00 AM AKST → 7:00 PM UTC)

• AKST to EST: Add 4 hours (Example: 10:00 AM AKST → 2:00 PM EST)

• AKST to PST: Add 1 hour (Example: 10:00 AM AKST → 11:00 AM PST)

During Daylight Time (AKDT, roughly Mar–Nov):

• AKDT to UTC: Add 8 hours (Example: 10:00 AM AKDT → 6:00 PM UTC)

• AKDT to EDT: Add 4 hours (Example: 10:00 AM AKDT → 2:00 PM EDT)

• AKDT to PDT: Add 1 hour (Example: 10:00 AM AKDT → 11:00 AM PDT)

The time difference between Alaska and the rest of the US stays consistent because all regions (except Arizona and Hawaii) switch together.

Time Difference with AKST

Time differences between Alaska Standard Time (AKST, UTC−9) and major world time zones:

Conclusion

Alaska Standard Time is more than just a clock setting — it's a practical solution to governing one of the most geographically extreme states in the nation. From the midnight sun to polar night, AKST keeps the Last Frontier running on a schedule that works for oil fields, fishing fleets, and everyone in between.

The 1983 consolidation that brought most of Alaska under one time zone was a bold move, and it's held up well. Whether you're scheduling a call with Anchorage, planning a cruise, or just wondering what time it is when the sun's still up at midnight — understanding AKST is your first step to getting Alaska time right.