San Juan to Tokyo time converter

Tokyo is 13 hours ahead of San Juan. When it is 9:00 AM in San Juan, it is 10:00 PM in Tokyo.

San Juan AST

Friday, October 16, 2026

Tokyo JST

Saturday, October 17, 2026

San Juan
Puerto Rico
Fri, Oct 16
ASTUTC-4
Tokyo
Japan
Sat, Oct 17
JSTUTC+9+13h
Finding your time zone…
Shared working hours (9:00–18:00)

San Juan to Tokyo conversion table

Every hour of today in San Juan and the matching time in Tokyo. Light rows are typical working hours (9:00–18:00).

San JuanTokyo
12:00 AM1:00 PM
1:00 AM2:00 PM
2:00 AM3:00 PM
3:00 AM4:00 PM
4:00 AM5:00 PM
5:00 AM6:00 PM
6:00 AM7:00 PM
7:00 AM8:00 PM
8:00 AM9:00 PM
9:00 AM10:00 PM
10:00 AM11:00 PM
11:00 AM12:00 AM+1 day
12:00 PM1:00 AM+1 day
1:00 PM2:00 AM+1 day
2:00 PM3:00 AM+1 day
3:00 PM4:00 AM+1 day
4:00 PM5:00 AM+1 day
5:00 PM6:00 AM+1 day
6:00 PM7:00 AM+1 day
7:00 PM8:00 AM+1 day
8:00 PM9:00 AM+1 day
9:00 PM10:00 AM+1 day
10:00 PM11:00 AM+1 day
11:00 PM12:00 PM+1 day

Best time to call or meet

Working hours don't overlap fully. The closest fit is 8:00 PM – 10:00 PM in San Juan (9:00 AM – 11:00 AM in Tokyo): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference stays 13 hours all year.

Distance

San Juan and Tokyo are 13,408 km (8,331 miles) apart in a straight line.

More conversions

Tokyo to San JuanSan Juan to New YorkSan Juan to LondonSan Juan to Los AngelesSan Juan to ChicagoSan Juan to TorontoSan Juan to São PauloSan Juan to ParisSan Juan to BerlinSan Juan to MoscowSan Juan to DubaiSan Juan to New DelhiSan Juan to Bangkok
New York to TokyoLondon to TokyoLos Angeles to TokyoChicago to TokyoToronto to TokyoSão Paulo to TokyoParis to TokyoBerlin to TokyoMoscow to TokyoDubai to TokyoNew Delhi to TokyoBangkok to Tokyo

Questions and answers

What is the time difference between San Juan and Tokyo?

Tokyo is 13 hours ahead of San Juan.

What time is it in Tokyo when it is 9 AM in San Juan?

When it is 9:00 AM in San Juan, it is 10:00 PM in Tokyo.

When is the best time to call Tokyo from San Juan?

Working hours don't overlap fully. The closest fit is 8:00 PM – 10:00 PM in San Juan (9:00 AM – 11:00 AM in Tokyo): working hours on one side, early or late on the other.

Does the time difference between San Juan and Tokyo change?

No. The difference stays 13 hours all year.