London to San Francisco time converter

San Francisco is 8 hours behind London. When it is 9:00 AM in London, it is 1:00 AM in San Francisco.

London BST

Wednesday, October 21, 2026

San Francisco PDT

Wednesday, October 21, 2026

London
United Kingdom
Wed, Oct 21
BSTUTC+1
San Francisco
California, United States
Wed, Oct 21
PDTUTC-7-8h
Finding your time zone…
Shared working hours (9:00–18:00)

London to San Francisco conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 21, 2026 – Oct 25, 2026: -8h
  • Oct 25, 2026 – Nov 1, 2026: -7h
  • Nov 1, 2026 – Mar 14, 2027: -8h
  • Mar 14, 2027 – Mar 28, 2027: -7h
  • Mar 28, 2027 – Oct 21, 2027: -8h

Distance

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

More conversions

San Francisco to LondonLondon to New YorkLondon to Los AngelesLondon to ChicagoLondon to TorontoLondon to São PauloLondon to ParisLondon to BerlinLondon to MoscowLondon to DubaiLondon to New DelhiLondon to BangkokLondon to Singapore
New York to San FranciscoLos Angeles to San FranciscoChicago to San FranciscoToronto to San FranciscoSão Paulo to San FranciscoParis to San FranciscoBerlin to San FranciscoMoscow to San FranciscoDubai to San FranciscoNew Delhi to San FranciscoBangkok to San FranciscoSingapore to San Francisco

Questions and answers

What is the time difference between London and San Francisco?

San Francisco is 8 hours behind London.

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

When it is 9:00 AM in London, it is 1:00 AM in San Francisco.

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

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

Does the time difference between London and San Francisco change?

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