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JST to AKST converter
Japan Standard Time
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Alaska Time
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Alaska Time is 17 hours behind Japan Standard Time for most of the year, and 18 hours behind for part of it, because the two change their clocks on different dates (or only one of them changes at all).
When does the difference change?
In 2026:
- January 1 to March 7: Alaska Time is 18 hours behind Japan Standard Time
- March 8 to October 31: Alaska Time is 17 hours behind Japan Standard Time
- November 1 to December 31: Alaska Time is 18 hours behind Japan Standard Time
Questions
What time is 9 AM JST in AKST?
For most of the year, 9 AM Japan Standard Time is 4 PM the day before Alaska Time. For part of the year it is 3 PM the day before, because of daylight saving time.
How many hours ahead or behind is AKST from JST?
Alaska Time is 17 hours behind Japan Standard Time for most of the year, and 18 hours behind for part of it, because the two change their clocks on different dates (or only one of them changes at all).
Does the JST to AKST difference change?
Yes. It changes 2 times in 2026 because of daylight saving time.
About these time zones
JST to AKST, hour by hour
| Japan Standard Time | Alaska Time |
|---|---|
| 12 AM | 7 AM (previous day) |
| 1 AM | 8 AM (previous day) |
| 2 AM | 9 AM (previous day) |
| 3 AM | 10 AM (previous day) |
| 4 AM | 11 AM (previous day) |
| 5 AM | 12 PM (previous day) |
| 6 AM | 1 PM (previous day) |
| 7 AM | 2 PM (previous day) |
| 8 AM | 3 PM (previous day) |
| 9 AM | 4 PM (previous day) |
| 10 AM | 5 PM (previous day) |
| 11 AM | 6 PM (previous day) |
| 12 PM | 7 PM (previous day) |
| 1 PM | 8 PM (previous day) |
| 2 PM | 9 PM (previous day) |
| 3 PM | 10 PM (previous day) |
| 4 PM | 11 PM (previous day) |
| 5 PM | 12 AM |
| 6 PM | 1 AM |
| 7 PM | 2 AM |
| 8 PM | 3 AM |
| 9 PM | 4 AM |
| 10 PM | 5 AM |
| 11 PM | 6 AM |
Based on the clocks on Monday, October 12, 2026. Use the converter above for another date.