What is the time difference between San Juan and Tokyo?

San Juan and Tokyo are in the same time zone offset, so there is no time difference between them.

When is the best time to schedule a meeting between San Juan and Tokyo?

There are 9 overlapping business hours (9 AM–6 PM) between San Juan and Tokyo. Scheduling during those hours ensures both parties are in their working day.

Is Tokyo ahead or behind San Juan?

Tokyo is at the same time as San Juan — both share the GMT-4 UTC offset.

What UTC offset does San Juan use?

San Juan uses the America/Puerto_Rico time zone, which is currently at GMT-4.

What UTC offset does Tokyo use?

Tokyo uses the Asia/Tokyo time zone, which is currently at GMT+9.

Does Daylight Saving Time affect the time difference between San Juan and Tokyo?

The time difference shown is live and already accounts for any Daylight Saving Time (DST) currently in effect in either city. If one city observes DST while the other does not, the difference can change by up to 1 hour during DST transitions — typically in spring and autumn.

What is the time difference between San Juan and Tokyo?

San Juan and Tokyo are in the same time zone offset, so there is no time difference between them.

When is the best time to schedule a meeting between San Juan and Tokyo?

There are 9 overlapping business hours (9 AM–6 PM) between San Juan and Tokyo. Scheduling during those hours ensures both parties are in their working day.

Is Tokyo ahead or behind San Juan?

Tokyo is at the same time as San Juan — both share the GMT-4 UTC offset.

What UTC offset does San Juan use?

San Juan uses the America/Puerto_Rico time zone, which is currently at GMT-4.

What UTC offset does Tokyo use?

Tokyo uses the Asia/Tokyo time zone, which is currently at GMT+9.

Does Daylight Saving Time affect the time difference between San Juan and Tokyo?

The time difference shown is live and already accounts for any Daylight Saving Time (DST) currently in effect in either city. If one city observes DST while the other does not, the difference can change by up to 1 hour during DST transitions — typically in spring and autumn.

Time Difference: San Juan vs Tokyo

San Juan (GMT-4) · Tokyo (GMT+9)

San Juan

GMT-4

--:--:--

Tokyo

GMT+9

--:--:--

Tokyo and San Juan are in the same UTC offset

Time Difference

San Juan Offset

GMT-4

America/Puerto_Rico

Tokyo Offset

GMT+9

Asia/Tokyo

Summary

San Juan and Tokyo share the same UTC offset

Business Hours Overlap (9 AM – 6 PM)

9 hours overlap during standard business hours in both cities.

San Juan	Tokyo	Overlap
9 AM	9 AM	Business hours
10 AM	10 AM	Business hours
11 AM	11 AM	Business hours
12 PM	12 PM	Business hours
1 PM	1 PM	Business hours
2 PM	2 PM	Business hours
3 PM	3 PM	Business hours
4 PM	4 PM	Business hours
5 PM	5 PM	Business hours
6 PM	6 PM	Outside

Frequently Asked Questions

Compare other cities with San Juan

San Juan vs New York San Juan vs London San Juan vs Paris San Juan vs Berlin San Juan vs Dubai San Juan vs Singapore San Juan vs Sydney San Juan vs Toronto

Compare other cities with Tokyo

New York vs Tokyo London vs Tokyo Paris vs Tokyo Berlin vs Tokyo Dubai vs Tokyo Singapore vs Tokyo Sydney vs Tokyo Toronto vs Tokyo

← Back to Time Difference Calculator