Time difference between London and San Francisco
San Francisco is 8 hours behind London
Right now
London
17:38
BST ·
UTC+1
San Francisco
09:38
PDT ·
UTC-7
Best time for a call between London and San Francisco
Hours highlighted in green work for everyone on the list.
- 16:00 London 08:00 San Francisco
- 17:00 London 09:00 San Francisco
- 15:00 London 07:00 San Francisco
Hour by hour: London to San Francisco
Working hours are shaded. The rows marked with a star are the ones we recommend for a call.
| London (reference) | San Francisco | |
|---|---|---|
| 00:00 | 16:00 (previous day) | |
| 01:00 | 17:00 (previous day) | |
| 02:00 | 18:00 (previous day) | |
| 03:00 | 19:00 (previous day) | |
| 04:00 | 20:00 (previous day) | |
| 05:00 | 21:00 (previous day) | |
| 06:00 | 22:00 (previous day) | |
| 07:00 | 23:00 (previous day) | |
| 08:00 | 00:00 | |
| 09:00 | 01:00 | |
| 10:00 | 02:00 | |
| 11:00 | 03:00 | |
| 12:00 | 04:00 | |
| 13:00 | 05:00 | |
| 14:00 | 06:00 | |
| ★ | 15:00 | 07:00 |
| ★ | 16:00 | 08:00 |
| ★ | 17:00 | 09:00 |
| 18:00 | 10:00 | |
| 19:00 | 11:00 | |
| 20:00 | 12:00 | |
| 21:00 | 13:00 | |
| 22:00 | 14:00 | |
| 23:00 | 15:00 |
Table built for August 26, 2026. The live values above update in your browser.
Daylight saving time
Both cities change their clocks, but not always on the same date — the difference between them shifts for a few weeks each year.
Frequently asked questions
What is the time difference between London and San Francisco?
San Francisco is 8 hours behind London
What is the best time to call between London and San Francisco?
The most convenient slot is 16:00 London / 08:00 San Francisco. That keeps the call inside working hours in both cities.
Does the difference between London and San Francisco change during the year?
Both cities change their clocks, but not always on the same date — the difference between them shifts for a few weeks each year.