JST to EST
Converting a fixed time. Asia/Tokyo → America/New_York
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
| JST | EST | 24h | Good to call? |
|---|---|---|---|
| 12am | 11am Thu | 00:00 → 11:00 | asleep in JST |
| 1am | 12pm Thu | 01:00 → 12:00 | asleep in JST |
| 2am | 1pm Thu | 02:00 → 13:00 | asleep in JST |
| 3am | 2pm Thu | 03:00 → 14:00 | asleep in JST |
| 4am | 3pm Thu | 04:00 → 15:00 | asleep in JST |
| 5am | 4pm Thu | 05:00 → 16:00 | asleep in JST |
| 6am | 5pm Thu | 06:00 → 17:00 | asleep in JST |
| 7am | 6pm Thu | 07:00 → 18:00 | awake, not at work |
| 8am now | 7pm Thu | 08:00 → 19:00 | awake, not at work |
| 9am | 8pm Thu | 09:00 → 20:00 | awake, not at work |
| 10am | 9pm Thu | 10:00 → 21:00 | awake, not at work |
| 11am | 10pm Thu | 11:00 → 22:00 | asleep in EST |
| 12pm | 11pm Thu | 12:00 → 23:00 | asleep in EST |
| 1pm | 12am | 13:00 → 00:00 | asleep in EST |
| 2pm | 1am | 14:00 → 01:00 | asleep in EST |
| 3pm | 2am | 15:00 → 02:00 | asleep in EST |
| 4pm | 3am | 16:00 → 03:00 | asleep in EST |
| 5pm | 4am | 17:00 → 04:00 | asleep in EST |
| 6pm | 5am | 18:00 → 05:00 | asleep in EST |
| 7pm | 6am | 19:00 → 06:00 | asleep in EST |
| 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 JST |
| 11pm | 10am | 23:00 → 10:00 | asleep in JST |
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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12pm
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Questions people ask
What time is it in EST when it is 12:00 pm in JST?
11:00 pm in EST the previous day.
How many hours ahead is EST of JST?
EST is 13 hours behind JST. 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 JST and EST?
There is no hour when both places are inside normal working hours. The least bad slot is usually early morning at the western end.