Tokyo to San Juan
Converting a fixed time. Asia/Tokyo → America/Puerto_Rico · 13,408 km (8,327 miles) apart
5:00 pm in Tokyo is
4:00 am in San Juan.
17:00 → 04:00 on a 24-hour clock ·
JST → AST
Tokyo now
12:37pm
JST · UTC+9
Asia/Tokyo
Clocks here do not change — this zone stays on the same offset all year.
San Juan now
11:37pm
AST · UTC-4
America/Puerto_Rico
Clocks here do not change — this zone stays on the same offset all year.
Convert a specific time minutes work, not just whole hours
Hour by hour
| Tokyo | San Juan | 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 San Juan |
| 12pm now | 11pm Wed | 12:00 → 23:00 | asleep in San Juan |
| 1pm | 12am | 13:00 → 00:00 | asleep in San Juan |
| 2pm | 1am | 14:00 → 01:00 | asleep in San Juan |
| 3pm | 2am | 15:00 → 02:00 | asleep in San Juan |
| 4pm | 3am | 16:00 → 03:00 | asleep in San Juan |
| 5pm | 4am | 17:00 → 04:00 | asleep in San Juan |
| 6pm | 5am | 18:00 → 05:00 | asleep in San Juan |
| 7pm | 6am | 19:00 → 06:00 | asleep in San Juan |
| 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.
12am
11am
11am
1am
12pm
12pm
2am
1pm
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9pm
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10pm
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12pm
11pm
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1pm
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2pm
1am
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4pm
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5pm
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4am
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7pm
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7am
9pm
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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 San Juan when it is 5:00 pm in Tokyo?
4:00 am in San Juan the same day.
How many hours ahead is San Juan of Tokyo?
San Juan is 13 hours behind Tokyo. Neither place changes its clocks, so that gap is the same all year. 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 San Juan?
There is no hour when both places are inside normal working hours. The least bad slot is usually early morning at the western end.