Tokyo to Boston
Converting a fixed time. Asia/Tokyo → America/New_York · 10,791 km (6,701 miles) apart
Clocks here do not change — this zone stays on the same offset all year.
Clocks go back 1 hour on Sunday, 1st November 2026, at 1:59 am local time (1:00 am after the change).
Convert a specific time minutes work, not just whole hours
Hour by hour
| Tokyo | Boston | 24h | Good to call? |
|---|---|---|---|
| 12am | 11am Wed | 00:00 → 11:00 | asleep in Tokyo |
| 1am | 12pm Wed | 01:00 → 12:00 | asleep in Tokyo |
| 2am | 1pm Wed | 02:00 → 13:00 | asleep in Tokyo |
| 3am | 2pm Wed | 03:00 → 14:00 | asleep in Tokyo |
| 4am | 3pm Wed | 04:00 → 15:00 | asleep in Tokyo |
| 5am | 4pm Wed | 05:00 → 16:00 | asleep in Tokyo |
| 6am | 5pm Wed | 06:00 → 17:00 | asleep in Tokyo |
| 7am | 6pm Wed | 07:00 → 18:00 | awake, not at work |
| 8am | 7pm Wed | 08:00 → 19:00 | awake, not at work |
| 9am | 8pm Wed | 09:00 → 20:00 | awake, not at work |
| 10am | 9pm Wed | 10:00 → 21:00 | awake, not at work |
| 11am | 10pm Wed | 11:00 → 22:00 | asleep in Boston |
| 12pm | 11pm Wed | 12:00 → 23:00 | asleep in Boston |
| 1pm | 12am | 13:00 → 00:00 | asleep in Boston |
| 2pm | 1am | 14:00 → 01:00 | asleep in Boston |
| 3pm | 2am | 15:00 → 02:00 | asleep in Boston |
| 4pm now | 3am | 16:00 → 03:00 | asleep in Boston |
| 5pm | 4am | 17:00 → 04:00 | asleep in Boston |
| 6pm | 5am | 18:00 → 05:00 | asleep in Boston |
| 7pm | 6am | 19:00 → 06:00 | asleep in Boston |
| 8pm | 7am | 20:00 → 07:00 | awake, not at work |
| 9pm | 8am | 21:00 → 08:00 | awake, not at work |
| 10pm | 9am | 22:00 → 09:00 | asleep in Tokyo |
| 11pm | 10am | 23:00 → 10:00 | asleep in Tokyo |
Call times
There is no hour when both places are inside normal working hours. The least bad slot is usually early morning at the western end.
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Questions people ask
What time is it in Boston when it is 12:00 pm in Tokyo?
11:00 pm in Boston the previous day.
How many hours ahead is Boston of Tokyo?
Boston is 13 hours behind Tokyo. That gap is not fixed: it changes when either place starts or ends daylight saving. The table on this page is recalculated for today, so it is already correct for the current season.
What is the best time to call between Tokyo and Boston?
There is no hour when both places are inside normal working hours. The least bad slot is usually early morning at the western end.