London to South San Francisco time converter

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

London BST

Wednesday, October 21, 2026

South San Francisco PDT

Wednesday, October 21, 2026

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

London to South San Francisco conversion table

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

LondonSouth San 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 South San Francisco).

Daylight saving time and the difference

The difference changes during the year because London and South 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 South San Francisco are 8,627 km (5,361 miles) apart in a straight line.

More conversions

South 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 South San FranciscoLos Angeles to South San FranciscoChicago to South San FranciscoToronto to South San FranciscoSão Paulo to South San FranciscoParis to South San FranciscoBerlin to South San FranciscoMoscow to South San FranciscoDubai to South San FranciscoNew Delhi to South San FranciscoBangkok to South San FranciscoSingapore to South San Francisco

Questions and answers

What is the time difference between London and South San Francisco?

South San Francisco is 8 hours behind London.

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

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

When is the best time to call South 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 South San Francisco).

Does the time difference between London and South 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.