San Juan to Shanghai time converter

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

San Juan CDT

Wednesday, October 21, 2026

Shanghai CST

Wednesday, October 21, 2026

San Juan
Texas, United States
Wed, Oct 21
CDTUTC-5
Shanghai
China
Wed, Oct 21
CSTUTC+8+13h
Finding your time zone…
Shared working hours (9:00–18:00)

San Juan to Shanghai conversion table

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

San JuanShanghai
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 Shanghai): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference changes during the year because San Juan and Shanghai switch clocks on different dates:

  • Oct 21, 2026 – Nov 1, 2026: +13h
  • Nov 1, 2026 – Mar 14, 2027: +14h
  • Mar 14, 2027 – Oct 21, 2027: +13h

Distance

San Juan and Shanghai are 12,370 km (7,686 miles) apart in a straight line.

More conversions

Shanghai 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 ShanghaiLondon to ShanghaiLos Angeles to ShanghaiChicago to ShanghaiToronto to ShanghaiSão Paulo to ShanghaiParis to ShanghaiBerlin to ShanghaiMoscow to ShanghaiDubai to ShanghaiNew Delhi to ShanghaiBangkok to Shanghai

Questions and answers

What is the time difference between San Juan and Shanghai?

Shanghai is 13 hours ahead of San Juan.

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

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

When is the best time to call Shanghai 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 Shanghai): working hours on one side, early or late on the other.

Does the time difference between San Juan and Shanghai change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.