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What is AKST in AST?

Atlantic Time is 5 hours ahead

Alaska Time is on UTC−9:00 and Atlantic Time is on UTC−4:00 right now. That gap holds all year, because both zones change their clocks on the same dates.

Convert a time

AST — Atlantic Time

4:00 am

AST, Sat, the next day

Time in Anchorage
11:29:29 PM
Time in Halifax
4:29:29 AM
Difference
+5 h
Next clock change
March 14, 2027

Daylight saving

Alaska Time

Sunday, March 14, 2027

Clocks go forward one hour — 2:00 am becomes 3:00 am local time, and the zone is on AKDT after that.

Atlantic Time

Sunday, March 14, 2027

Clocks go forward one hour — 2:00 am becomes 3:00 am local time, and the zone is on ADT after that.

AKST to AST conversion table

Every hour of Friday, November 6, 2026, converted from Alaska Time to Atlantic Time. 5 of the 24 hours fall on a different calendar day in Halifax, which is marked.

12:00 am AKST
5:00 am AST
1:00 am AKST
6:00 am AST
2:00 am AKST
7:00 am AST
3:00 am AKST
8:00 am AST
4:00 am AKST
9:00 am AST
5:00 am AKST
10:00 am AST
6:00 am AKST
11:00 am AST
7:00 am AKST
12:00 pm AST
8:00 am AKST
1:00 pm AST
9:00 am AKST
2:00 pm AST
10:00 am AKST
3:00 pm AST
11:00 am AKST
4:00 pm AST
12:00 pm AKST
5:00 pm AST
1:00 pm AKST
6:00 pm AST
2:00 pm AKST
7:00 pm AST
3:00 pm AKST
8:00 pm AST
4:00 pm AKST
9:00 pm AST
5:00 pm AKST
10:00 pm AST
6:00 pm AKST
11:00 pm AST
7:00 pm AKST
12:00 am AST+1 day
8:00 pm AKST
1:00 am AST+1 day
9:00 pm AKST
2:00 am AST+1 day
10:00 pm AKST
3:00 am AST+1 day
11:00 pm AKST
4:00 am AST+1 day

Scheduling between the two

Working hours overlap from 9:00 am to 1:00 pm AKST, which is 2:00 pm to 6:00 pm AST. Anything inside that window falls in the normal working day at both ends.

A note on AST: it can also mean Arabia Standard Time (UTC+3). This page means Atlantic Time.

Atlantic Time (AST) is used in Nova Scotia, New Brunswick and Puerto Rico

Other conversions