San Francisco to London time converter

London is 8 hours ahead of San Francisco. When it is 9:00 AM in San Francisco, it is 5:00 PM in London.

San Francisco PDT

Wednesday, October 21, 2026

London BST

Wednesday, October 21, 2026

California, United States
Wed, Oct 21
PDTUTC-7
United Kingdom
Wed, Oct 21
BSTUTC+1+8h
Finding your time zone…

3:44 AM in San Francisco, Wednesday, October 21, 2026

Shared working hours (9:00–18:00)

San Francisco to London conversion table

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

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

Best time to call or meet

Both sides are at work from 9:00 AM – 10:00 AM in San Francisco (5:00 PM – 6:00 PM in London).

Daylight saving time and the difference

The difference changes during the year because San Francisco and London switch clocks on different dates:

  • Oct 21, 2026 – Oct 24, 2026: +8h
  • Oct 24, 2026 – Nov 1, 2026: +7h
  • Nov 1, 2026 – Mar 14, 2027: +8h
  • Mar 14, 2027 – Mar 27, 2027: +7h
  • Mar 27, 2027 – Oct 21, 2027: +8h

Distance

San Francisco and London are 8,616 km (5,354 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between San Francisco and London?

London is 8 hours ahead of San Francisco.

What time is it in London when it is 9 AM in San Francisco?

When it is 9:00 AM in San Francisco, it is 5:00 PM in London.

When is the best time to call London from San Francisco?

Both sides are at work from 9:00 AM – 10:00 AM in San Francisco (5:00 PM – 6:00 PM in London).

Does the time difference between San Francisco 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.