London → San Francisco: Time Difference
San Francisco is 8 hours behind London.
How the difference works
London uses Europe/London (UTC+0 standard time) and San Francisco uses America/Los_Angeles (UTC-8 standard time) — a standard-time gap of 8 hours behind London. Both cities observe daylight saving time, but they switch on different dates, so the gap can temporarily change around those transitions.
Distance: about 8,616 km (5,354 mi) great-circle distance.
London → San Francisco, hour by hour
| London | San Francisco | Best hours to call |
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Frequently asked questions
What is the time difference between London and San Francisco?
In standard time, San Francisco is 8 hours behind London. Both cities observe daylight saving time, but they switch on different dates, so the gap can temporarily change around those transitions.
When it is 9:00 in London, what time is it in San Francisco?
In standard time it is 01:00 in San Francisco. During daylight saving periods the answer can move by an hour — the live table on this page always reflects today's rules.
How far is San Francisco from London?
About 8,616 km (5,354 miles) as the crow flies, computed from city-center coordinates.