What is AKST in JST?
Japan Standard Time is 17 hours ahead
Alaska Time is on UTC−8:00 and Japan Standard Time is on UTC+9:00 right now. Alaska Time is on daylight saving, so its clocks read AKDT. The gap changes during the year — see below.
- Time in Anchorage
- 6:14 pm
- Time in Tokyo
- 11:14 am
- Difference
- +17 h
- Next clock change
- November 1, 2026
Convert a time
JST — Japan Standard Time
11:00 am
Wed, the next day
When the difference changes
Alaska Time and Japan Standard Time do not change their clocks on the same dates, so the gap between them is not the same all year. Most converters show only today’s figure. These are the periods ahead:
- Now – November 1, 2026Japan Standard Time is 17 hours ahead
- November 1, 2026 – March 14, 2027Japan Standard Time is 18 hours ahead
- March 14, 2027 – onwardsJapan Standard Time is 17 hours ahead
Periods shorter than a day are not listed: both zones change at 2am in their own local time, so there are a few hours on each transition date when the gap is briefly something else.
Daylight saving
Alaska Time
Clocks go back one hour at 2am local time, becoming AKST.
Japan Standard Time
Japan Standard Time stays on JST all year, so its offset from UTC never moves.
AKST to JST conversion table
Every hour of Tuesday, September 22, 2026, converted from Alaska Time to Japan Standard Time. 17 of the 24 hours fall on a different calendar day in Tokyo, which is marked.
- 12:00 am AKDT
- 5:00 pm JST
- 1:00 am AKDT
- 6:00 pm JST
- 2:00 am AKDT
- 7:00 pm JST
- 3:00 am AKDT
- 8:00 pm JST
- 4:00 am AKDT
- 9:00 pm JST
- 5:00 am AKDT
- 10:00 pm JST
- 6:00 am AKDT
- 11:00 pm JST
- 7:00 am AKDT
- 12:00 am JST+1 day
- 8:00 am AKDT
- 1:00 am JST+1 day
- 9:00 am AKDT
- 2:00 am JST+1 day
- 10:00 am AKDT
- 3:00 am JST+1 day
- 11:00 am AKDT
- 4:00 am JST+1 day
- 12:00 pm AKDT
- 5:00 am JST+1 day
- 1:00 pm AKDT
- 6:00 am JST+1 day
- 2:00 pm AKDT
- 7:00 am JST+1 day
- 3:00 pm AKDT
- 8:00 am JST+1 day
- 4:00 pm AKDT
- 9:00 am JST+1 day
- 5:00 pm AKDT
- 10:00 am JST+1 day
- 6:00 pm AKDT
- 11:00 am JST+1 day
- 7:00 pm AKDT
- 12:00 pm JST+1 day
- 8:00 pm AKDT
- 1:00 pm JST+1 day
- 9:00 pm AKDT
- 2:00 pm JST+1 day
- 10:00 pm AKDT
- 3:00 pm JST+1 day
- 11:00 pm AKDT
- 4:00 pm JST+1 day
Scheduling between the two
Working hours overlap from 4:00 pm to 6:00 pm AKDT, which is 9:00 am to 11:00 am JST. Anything inside that window falls in the normal working day at both ends.