JST to EST
Converting a fixed time. Asia/Tokyo → America/New_York
5:00 pm in JST is
4:00 am in EST.
17:00 → 04:00 on a 24-hour clock ·
JST → EDT
JST now
5:29am
JST · UTC+9
Asia/Tokyo
Clocks here do not change — this zone stays on the same offset all year.
EST now
4:29pm
EDT · UTC-4
America/New_York
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 now | 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 | 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.
12am
11am
11am
1am
12pm
12pm
2am
1pm
1pm
3am
2pm
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4am
3pm
3pm
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7pm
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10am
9pm
9pm
11am
10pm
10pm
12pm
11pm
11pm
1pm
12am
12am
2pm
1am
1am
3pm
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4pm
3am
3am
5pm
4am
4am
6pm
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7pm
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6am
8pm
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7am
9pm
8am
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10pm
9am
9am
11pm
10am
10am
both at work
work hours here
awake
asleep
Questions people ask
What time is it in EST when it is 5:00 pm in JST?
4:00 am in EST the same 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.