Инструменты Intosoft

Anchorage to AST

+4h

Anchorage

AKDTSOURCE
USA · UTC-08:00☀ DST active
HH12
:
MM00
  
12:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM

AST

AST
UTC-03:00☀ DST active
HH04
:
MM00
  
16:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM
Anchorage
AST
12:00 AM
5:00 AM
2:00 AM
7:00 AM
4:00 AM
9:00 AM
6:00 AM
11:00 AM
8:00 AM
1:00 PM
10:00 AM
3:00 PM
12:00 PM
5:00 PM
2:00 PM
7:00 PM
4:00 PM
9:00 PM
6:00 PM
11:00 PM
8:00 PM
1:00 AM+1
10:00 PM
3:00 AM+1

Green rows indicate typical business hours (9 AM - 5 PM)

AKDT and AST on the World Map

The map below highlights the AKDT (Alaska Standard Time) and AST (Atlantic Standard Time) timezone regions across the globe.

AKDTASTAnchorageFairbanksJuneauSitkaHalifaxSan JuanSanto DomingoCaracas
AKDT Zone
→
AST Zone

Explore all world timezones interactively →

AKST – Alaska Standard Time

UTC-09:00

Alaska Standard Time (AKST) is the time zone for the state of Alaska, 9 hours behind UTC.

Countries in AKST
United States (Alaska)
Major Cities in AKST
AnchorageFairbanksJuneauSitkaWasilla
Key Facts about AKST
  • •Alaska is the largest US state by area but has only about 730,000 residents.
  • •Anchorage is the most populous city in AKST with about 290,000 people.
  • •The Aleutian Islands use HAST instead of AKST.
Daylight Saving:Yes – switches to AKDT
Learn more about AKST on Wikipedia

AST – Atlantic Standard Time

UTC-04:00

Atlantic Standard Time (AST) is the time zone for the Canadian Atlantic provinces and the Caribbean, 4 hours behind UTC.

Countries in AST
Canada (Atlantic provinces)Puerto RicoUS Virgin IslandsDominican RepublicVenezuelaBoliviaBarbadosTrinidad and Tobago
Major Cities in AST
HalifaxSan JuanSanto DomingoCaracasLa PazFrederictonCharlottetown
Key Facts about AST
  • •Puerto Rico uses AST year-round and does not observe DST.
  • •AST is 1 hour ahead of EST.
  • •Halifax, the capital of Nova Scotia, is the largest city in AST Canada.
Daylight Saving:Yes – switches to ADT
Learn more about AST on Wikipedia

About Anchorage

Wikipedia

Anchorage operates on Alaska Time (AKST/AKDT), UTC-9. As a global air cargo hub, Anchorage connects Asian and American markets via polar routes.

Population:287,000
Metro:398,000
Business Hours:8:00 AM - 5:00 PM AKST
Currency:USD ($)
Key Landmarks
Anchorage MuseumTony Knowles Coastal TrailFlattop MountainAlaska Wildlife Conservation CenterShip Creek
Did You Know?

Moose occasionally wander through the city streets.

Learn more about AKDT timezone →

Understanding the +4h Gap: Anchorage vs AST

Anchorage runs on Alaska Daylight Time (AKDT) at UTC-08:00, currently observing daylight saving time. AST runs on Atlantic Standard Time (AST) at UTC-04:00. That puts Anchorage 4 hours ahead of AST — a difference of +4h at the current offsets.

In practice, when it is 9:00 AM in Anchorage it is 1:00 PM in AST. Midnight in Anchorage is 4:00 AM in AST.Anchorage observes daylight saving time while AST does not, so the gap narrows or widens by an hour part of the year.

Anchorage to AST time conversion table

Anchorage (AKDT)AST (AST)Day
12:00 AM4:00 AMsame day
6:00 AM10:00 AMsame day
7:00 AM11:00 AMsame day
8:00 AM12:00 PMsame day
9:00 AM1:00 PMsame day
12:00 PM4:00 PMsame day
3:00 PM7:00 PMsame day
5:00 PM9:00 PMsame day
6:00 PM10:00 PMsame day
9:00 PM1:00 AMnext day

Why people convert Anchorage to AST time

  • Scheduling a call from Anchorage to AST: a 10:00 AM start in Anchorage lands at 2:00 PM in AST, so you can confirm the slot without doing the arithmetic yourself.
  • Finding shared working hours: both Anchorage and AST are inside the 9-to-5 working day between 9:00 AM and 1:00 PM AKDT time (1:00 PM–5:00 PM AST). That is roughly 4 hours of usable overlap.
  • Booking travel or deliveries: tracking AST local time against Anchorage keeps pickup windows and arrival estimates honest across the +4h offset.
  • Always state the zone abbreviation, not just the hour. "3:00 PM AKDT" is unambiguous; "3 PM" across a +4h gap is not.
  • Block 9:00 AM–1:00 PM AKDT as the recurring meeting window if you work primarily from Anchorage and need AST colleagues present.
  • Anchorage: Clocks fall back on Sun, Nov 1, 2026. Re-check this page after that date because the offset changes and so does the +4h gap.

About AKST (Alaska Standard Time)

Alaska Standard Time (AKST) is used in nearly all of Alaska. Due to Alaska's vast geographic size, the Aleutian Islands use Hawaii-Aleutian Standard Time instead. During summer months, Alaska switches to Alaska Daylight Time (AKDT, UTC-08:00).

About AST (Atlantic Standard Time)

Atlantic Standard Time (AST) covers Canada's Atlantic provinces (Nova Scotia, New Brunswick, Prince Edward Island, and most of Labrador), as well as several Caribbean nations. Puerto Rico and the US Virgin Islands use AST year-round without daylight saving time. The Canadian provinces switch to Atlantic Daylight Time (ADT) in summer.

Best time to call between Anchorage and AST

Both Anchorage and AST sit inside the 9 AM – 5 PM working day between 9:00 AM–1:00 PM AKDT, which is 1:00 PM–5:00 PM AST. That gives roughly 4 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Anchorage and AST overlap for about 4 hours during the working day — enough for meetings if you avoid the edges of the window.

Anchorage is 4 hours ahead of AST (AKDT UTC-08:00 → AST UTC-04:00). The shared working window is 9:00 AM–1:00 PM AKDT. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

Anchorage

☀ Currently in DST

Standard: UTC-09:00 · DST: UTC-08:00

Clocks fall back on Sun, Nov 1, 2026

AST

☀ Currently in DST

Standard: UTC-04:00 · DST: UTC-03:00

Clocks fall back on Sun, Nov 1, 2026

Learn More About Time

Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:

⏳
History of Timekeeping
From sundials to atomic clocks - 5000 years of measuring time
🌍
How Time Zones Work
UTC, offsets, and why zones don't follow straight lines
☀️
Daylight Saving Time
DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between Anchorage and AST?

Anchorage (AKDT, UTC-08:00) is 4 hours ahead of AST (AST, UTC-04:00). The gap is currently +4h.

How do I convert Anchorage time to AST time?

Add +4h to Anchorage local time. For example, 9:00 AM in Anchorage is 1:00 PM in AST.

What time is it in AST right now?

AST uses AST at UTC-04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +4h offset from Anchorage.

What is the best time to call AST from Anchorage?

Call between 9:00 AM and 1:00 PM AKDT — that maps to 1:00 PM–5:00 PM AST and keeps both parties inside the working day.

Which is ahead, Anchorage or AST?

Anchorage is 4 hours ahead of AST. When it is 12:00 PM in Anchorage it is 4:00 PM in AST.

Do Anchorage and AST use different time zones?

Anchorage (USA) uses AKDT at UTC-08:00, while AST uses AST at UTC-04:00. The IANA identifiers are America/Anchorage and America/Halifax.

Does daylight saving time affect the Anchorage–AST difference?

Yes at the moment: Anchorage is on daylight saving time and AST is not, so the +4h gap shifts by an hour when exactly one of them changes clocks.

Which other cities share Anchorage's time zone?

AKDT also covers Anchorage, Fairbanks, Juneau, Sitka, Wasilla.

Which countries use AKDT, Anchorage's zone?

AKDT is used in United States (Alaska).

Is there a day difference between Anchorage and AST?

Not normally. The +4h gap only pushes the date over for late-evening times.

What is the time difference between Anchorage and AST?

AST is +4h from Anchorage.

What timezone is Anchorage in?

Anchorage operates on Alaska Time (AKST/AKDT), UTC-9. As a global air cargo hub, Anchorage connects Asian and American markets via polar routes.

What timezone is AST in?

AST operates on its local timezone.

What are the business hours in Anchorage?

Standard business hours in Anchorage are 8:00 AM - 5:00 PM AKST.

Which countries use AKST (Alaska Standard Time)?

AKST is used in United States (Alaska).

Does AKST observe daylight saving time?

Yes, AKST switches to AKDT during summer months.

What are some interesting facts about AKST?

Alaska is the largest US state by area but has only about 730,000 residents. Anchorage is the most populous city in AKST with about 290,000 people.

Which cities are in the AST timezone?

Major cities in the AST timezone include Halifax, San Juan, Santo Domingo, Caracas, La Paz, Fredericton, Charlottetown.

What is the UTC offset for AST?

Atlantic Standard Time (AST) is at UTC-04:00. During daylight saving time, it shifts to ADT.

What should I know about the AST timezone?

Puerto Rico uses AST year-round and does not observe DST. AST is 1 hour ahead of EST.

When is it midnight in Anchorage, what time is it in AST?

When it is 12:00 AM (midnight) in Anchorage (AKST), it is +4h later in AST (AST).

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