São Marcos to London time converter

London is 4 hours ahead of São Marcos. When it is 9:00 AM in São Marcos, it is 1:00 PM in London.

São Marcos BRT

Wednesday, October 21, 2026

London BST

Wednesday, October 21, 2026

Rio Grande do Sul, Brazil
Wed, Oct 21
BRTUTC-3
United Kingdom
Wed, Oct 21
BSTUTC+1+4h
Finding your time zone…

3:09 AM in São Marcos, Wednesday, October 21, 2026

Shared working hours (9:00–18:00)

São Marcos to London conversion table

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

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

Best time to call or meet

Both sides are at work from 9:00 AM – 2:00 PM in São Marcos (1:00 PM – 6:00 PM in London).

Daylight saving time and the difference

The difference changes during the year because São Marcos and London switch clocks on different dates:

  • Oct 21, 2026 – Oct 24, 2026: +4h
  • Oct 24, 2026 – Mar 27, 2027: +3h
  • Mar 27, 2027 – Oct 21, 2027: +4h

Distance

São Marcos and London are 10,237 km (6,361 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between São Marcos and London?

London is 4 hours ahead of São Marcos.

What time is it in London when it is 9 AM in São Marcos?

When it is 9:00 AM in São Marcos, it is 1:00 PM in London.

When is the best time to call London from São Marcos?

Both sides are at work from 9:00 AM – 2:00 PM in São Marcos (1:00 PM – 6:00 PM in London).

Does the time difference between São Marcos and London change?

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