San Francisco to London Time Difference
Clocks in San Francisco are 8 hours behind
Quick time conversions: San Francisco → London
Common reference points to help you plan across the time difference.
For every 9:00 AM in San Francisco, it's simultaneously 5:00 PM in London.
If it's 2:00 PM where I am in San Francisco, what does London show?—10:00 PM
4:00 PMin San Francisco→12:00 AMin London(+1 day)
8:00 AM in San Francisco corresponds exactly to 4:00 PM in London.
5:00 PMin San Francisco→1:00 AMin London(+1 day)
If I call at 3:00 PM from San Francisco, what time is it in London?—11:00 PM
10:00 AMin San Francisco→6:00 PMin London
Frequently Asked Questions
What is the time difference between San Francisco and London?
There is a 8 hours gap between San Francisco and London. San Francisco runs on America/Los_Angeles and London on Europe/London.
Is there any working hours overlap between San Francisco and London?
The 8 hours gap means when San Francisco is in core hours, London is not, and vice versa. Most teams use async or rotating off-hour calls.
Is the 8 hours difference between San Francisco and London stable right now?
Neither San Francisco nor London has a DST transition this week. The 8 hours gap remains consistent.
When it is 12:00 noon in San Francisco, what time is it in London?
San Francisco at noon — that's 8:00 PM in London at the exact same instant.
How can I quickly find the current time in London from San Francisco?
Use the interactive slider above. Drag it to any San Francisco hour and all locations update instantly. Or type "3pm" / "15:00" in the search bar.
Which upcoming holidays affect San Francisco–London coordination?
San Francisco observes Independence Day on July 3. Keep this in mind when coordinating between San Francisco and London.
What time zones do San Francisco and London use?
San Francisco is in the America/Los_Angeles timezone. London is in Europe/London. The difference is 8 hours.
What time is a 9 AM San Francisco meeting in London?
9 AM in San Francisco → 5:00 PM in London. That falls outside standard hours in London — confirm with your contact.
What happens to my body clock flying from San Francisco to London?
Traveling from San Francisco to London means you lose 8 hours in local time. Plan a day or two to acclimatize before important meetings.
San Francisco ↔ London
No overlap — one side will join outside working hours· Showing morning hours (05:00–13:00)
San Francisco
London
Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.