Time Difference Between Tokyo and Hawaii Time
As of 31 August 2026, Hawaii Time is 19 hours behind Tokyo. This difference is fixed: neither zone shifts its clocks against the other, so it holds all year.
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Tokyo, Japan
07:34
Tue, Sep 1, 2026
UTC+9 · Asia/Tokyo
Hawaii Time, United States
-19h12:34
Mon, Aug 31, 2026
UTC-10 · HST · Pacific/Honolulu
Hawaii Time is 19 hours behind Tokyo.
When it is 07:34 in Tokyo, it is already the previous day in Hawaii Time.
Time zone details
| Place | Local date | Time zone | UTC offset | Summer time |
|---|---|---|---|---|
| Tokyo | Tuesday, September 1, 2026 | Asia/Tokyo | UTC+9 | Not observed |
| Hawaii Time | Monday, August 31, 2026 | HSTPacific/Honolulu | UTC-10 | Not observed |
Hawaii Time: Covers Hawaii. Stays at UTC-10 all year — Hawaii does not observe daylight saving time.
Hour by hour: Tokyo to Hawaii Time
Every hour of today in Tokyo and what it is in Hawaii Time. Highlighted rows fall inside Hawaii Time working hours (09:00–18:00).
| Tokyo | Hawaii Time |
|---|---|
| 00:00 | 05:00prev day |
| 01:00 | 06:00prev day |
| 02:00 | 07:00prev day |
| 03:00 | 08:00prev day |
| 04:00 | 09:00prev day |
| 05:00 | 10:00prev day |
| 06:00 | 11:00prev day |
| 07:00 | 12:00prev day |
| 08:00 | 13:00prev day |
| 09:00 | 14:00prev day |
| 10:00 | 15:00prev day |
| 11:00 | 16:00prev day |
| Tokyo | Hawaii Time |
|---|---|
| 12:00 | 17:00prev day |
| 13:00 | 18:00prev day |
| 14:00 | 19:00prev day |
| 15:00 | 20:00prev day |
| 16:00 | 21:00prev day |
| 17:00 | 22:00prev day |
| 18:00 | 23:00prev day |
| 19:00 | 00:00 |
| 20:00 | 01:00 |
| 21:00 | 02:00 |
| 22:00 | 03:00 |
| 23:00 | 04:00 |
Best time to call or meet
Overlapping working hours
09:00–13:00 in Tokyo (14:00–18:00 in Hawaii Time)
Both places are inside 09:00–18:00 for 4 hours a day. Anything in this window works without asking anyone to stay late.
Reasonable calling hours
08:00–16:00 in Tokyo (13:00–21:00 in Hawaii Time)
Both people are awake and available between 08:00 and 21:00 local time during this window.
When this difference changes
Neither Tokyo nor Hawaii Time changes its clocks, so the difference of 19 hours stays the same all year.
Planning something with more than two places?
Adding a third city usually kills the obvious answer. The Meeting Time Finder takes up to five cities at once and shows only the hours that work for everybody.
Tokyo and Hawaii Time: common questions
What is the time difference between Tokyo and Hawaii Time?
Hawaii Time is 19 hours behind Tokyo, and this does not change during the year because the difference between these two zones is fixed.
When it is 9:00 AM in Tokyo, what time is it in Hawaii Time?
It is 02:00 PM in Hawaii Time, United States. Use the time field in the calculator above to check any other hour.
Is Hawaii Time ahead of or behind Tokyo?
Hawaii Time is behind Tokyo by 19 hours at the moment. In practical terms, the working day in Hawaii Time starts and ends later in Tokyo terms.
Do Tokyo and Hawaii Time observe daylight saving time?
Neither Tokyo nor Hawaii Time observes daylight saving time, so the difference stays at 19 hours all year.
What is the best time to call Hawaii Time from Tokyo?
Working hours overlap between 09:00 and 13:00 Tokyo time, which is 14:00 to 18:00 in Hawaii Time. Calls inside that window reach both sides during the normal working day.
Related comparisons
Local dates shown for Tokyo, Japan (UTC+9) and Hawaii Time, United States (UTC-10) were generated on Monday, August 31, 2026 UTC and refresh in your browser.