Tokyo to San Juan time converter

San Juan is 13 hours behind Tokyo. When it is 9:00 AM in Tokyo, it is 8:00 PM (Mon, Oct 19) in San Juan.

Tokyo JST

Tuesday, October 20, 2026

San Juan AST

Monday, October 19, 2026

Tokyo
Japan
Tue, Oct 20
JSTUTC+9
San Juan
Puerto Rico
Mon, Oct 19
ASTUTC-4-13h
Finding your time zone…
Shared working hours (9:00–18:00)

Tokyo to San Juan conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 9:00 AM – 11:00 AM in Tokyo (8:00 PM – 10:00 PM in San Juan): 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

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

More conversions

San Juan to TokyoTokyo to New YorkTokyo to LondonTokyo to Los AngelesTokyo to ChicagoTokyo to TorontoTokyo to São PauloTokyo to ParisTokyo to BerlinTokyo to MoscowTokyo to DubaiTokyo to New DelhiTokyo to Bangkok
New York to San JuanLondon to San JuanLos Angeles to San JuanChicago to San JuanToronto to San JuanSão Paulo to San JuanParis to San JuanBerlin to San JuanMoscow to San JuanDubai to San JuanNew Delhi to San JuanBangkok to San Juan

Questions and answers

What is the time difference between Tokyo and San Juan?

San Juan is 13 hours behind Tokyo.

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

When it is 9:00 AM in Tokyo, it is 8:00 PM (Mon, Oct 19) in San Juan.

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

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

Does the time difference between Tokyo and San Juan change?

No. The difference stays 13 hours all year.