Shanghai to São Martinho time converter

São Martinho is 7 hours behind Shanghai. When it is 9:00 AM in Shanghai, it is 2:00 AM in São Martinho.

Shanghai CST

Wednesday, October 21, 2026

São Martinho WEST

Wednesday, October 21, 2026

Shanghai
China
Wed, Oct 21
CSTUTC+8
São Martinho
Portugal
Wed, Oct 21
WESTUTC+1-7h
Finding your time zone…
Shared working hours (9:00–18:00)

Shanghai to São Martinho conversion table

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

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

Best time to call or meet

Both sides are at work from 4:00 PM – 6:00 PM in Shanghai (9:00 AM – 11:00 AM in São Martinho).

Daylight saving time and the difference

The difference changes during the year because Shanghai and São Martinho switch clocks on different dates:

  • Oct 21, 2026 – Oct 25, 2026: -7h
  • Oct 25, 2026 – Mar 28, 2027: -8h
  • Mar 28, 2027 – Oct 21, 2027: -7h

Distance

Shanghai and São Martinho are 11,676 km (7,255 miles) apart in a straight line.

More conversions

São Martinho to ShanghaiShanghai to New YorkShanghai to LondonShanghai to Los AngelesShanghai to ChicagoShanghai to TorontoShanghai to São PauloShanghai to ParisShanghai to BerlinShanghai to MoscowShanghai to DubaiShanghai to New DelhiShanghai to Bangkok
New York to São MartinhoLondon to São MartinhoLos Angeles to São MartinhoChicago to São MartinhoToronto to São MartinhoSão Paulo to São MartinhoParis to São MartinhoBerlin to São MartinhoMoscow to São MartinhoDubai to São MartinhoNew Delhi to São MartinhoBangkok to São Martinho

Questions and answers

What is the time difference between Shanghai and São Martinho?

São Martinho is 7 hours behind Shanghai.

What time is it in São Martinho when it is 9 AM in Shanghai?

When it is 9:00 AM in Shanghai, it is 2:00 AM in São Martinho.

When is the best time to call São Martinho from Shanghai?

Both sides are at work from 4:00 PM – 6:00 PM in Shanghai (9:00 AM – 11:00 AM in São Martinho).

Does the time difference between Shanghai and São Martinho change?

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