Time difference between Boston and Tokyo
World time board
Boston · United StatesUTC-04:00
06:39 AMFRI 02.10.2026
Now 06:39 AM|Live
Drag or scroll · click an hour · ◀ ▶ by hour · 3 days of range
Work–
daydawn / dusknight
- Time difference
- Boston is 13 hours behind
- Changes with DST
- Yes
- Day difference
- Same day
- Typical workday overlap (9am–6pm)
- None
| Boston | Tokyo |
|---|---|
| 00:00 | 13:00 |
| 01:00 | 14:00 |
| 02:00 | 15:00 |
| 03:00 | 16:00 |
| 04:00 | 17:00 |
| 05:00 | 18:00 |
| 06:00 | 19:00 |
| 07:00 | 20:00 |
| 08:00 | 21:00 |
| 09:00 | 22:00 |
| 10:00 | 23:00 |
| 11:00 | 00:00+1 |
| 12:00 | 01:00+1 |
| 13:00 | 02:00+1 |
| 14:00 | 03:00+1 |
| 15:00 | 04:00+1 |
| 16:00 | 05:00+1 |
| 17:00 | 06:00+1 |
| 18:00 | 07:00+1 |
| 19:00 | 08:00+1 |
| 20:00 | 09:00+1 |
| 21:00 | 10:00+1 |
| 22:00 | 11:00+1 |
| 23:00 | 12:00+1 |
How the time difference changes over the next 12 months
| Period | Difference |
|---|---|
| until November 1, 2026 | Boston is 13 hours behind |
| November 1, 2026 – March 14, 2027 | Boston is 14 hours behind |
| from March 14, 2027 | Boston is 13 hours behind |
Only Boston changes its clocks, so the difference shifts twice a year.
Working hours
With a 9:00 AM–6:00 PM working day in both places, there are no shared hours: 9:00 AM in Boston is 10:00 PM in Tokyo.
From 11:00 AM to midnight in Boston, it is already the next day in Tokyo.
Frequently asked questions
- What is the time difference between Boston and Tokyo?
- Boston is 13 hours behind Tokyo. November 1, 2026 – March 14, 2027: Boston is 14 hours behind Tokyo.
- Does the time difference between Boston and Tokyo change during the year?
- Yes. Only Boston changes its clocks, so the difference shifts twice a year. November 1, 2026 – March 14, 2027: Boston is 14 hours behind Tokyo.