Bilateral Time Zone Comparison
London to San Francisco Time Difference
San Francisco is exactly 8 hours behind of London. Compare live atomic clocks, calculate overlapping working hours, and schedule meetings seamlessly.
Quick Answer: San Francisco is exactly 8 hours behind of London. When it is 12:00 PM (Noon) in London, it is 4:00 AM in San Francisco. Outside standard daytime business hours.
Reference City
UTC +1London
Saturday, October 10, 2026
5:21:46
Europe/LondonTarget City
UTC -7San Francisco
Saturday, October 10, 2026
9:21:46
America/Los_AngelesExact Difference Summary
San Francisco is 8 hours ahead of London
When it is 12:00 PM (Noon) in London, it is 8 hours ahead in San Francisco.
24-Hour Time Conversion & Business Overlap
Highlighted green rows represent mutual office hours (9:00 AM – 6:00 PM).
Shared Business Hours
Lon:00:00
San:16:00
Lon:01:00
San:17:00
Lon:02:00
San:18:00
Lon:03:00
San:19:00
Lon:04:00
San:20:00
Lon:05:00
San:21:00
Lon:06:00
San:22:00
Lon:07:00
San:23:00
Lon:08:00
San:00:00
Lon:09:00
San:01:00
Lon:10:00
San:02:00
Lon:11:00
San:03:00
Lon:12:00
San:04:00
Lon:13:00
San:05:00
Lon:14:00
San:06:00
Lon:15:00
San:07:00
Lon:16:00
San:08:00
Lon:17:00
San:09:00
Lon:18:00
San:10:00
Lon:19:00
San:11:00
Lon:20:00
San:12:00
Lon:21:00
San:13:00
Lon:22:00
San:14:00
Lon:23:00
San:15:00
Hourly Comparison Table
London to San Francisco Hourly Time Chart
Hour-by-hour cross-reference table for planning transatlantic calls, remote handoffs, and meetings between London (United Kingdom) and San Francisco (United States).
| London Local Time | San Francisco Local Time |
|---|---|
| 8:00 AM (London) | 12:00 AM (San Francisco) |
| 9:00 AM (London) | 1:00 AM (San Francisco) |
| 10:00 AM (London) | 2:00 AM (San Francisco) |
| 11:00 AM (London) | 3:00 AM (San Francisco) |
| 12:00 PM (London) | 4:00 AM (San Francisco) |
| 1:00 PM (London) | 5:00 AM (San Francisco) |
| 2:00 PM (London) | 6:00 AM (San Francisco) |
| 3:00 PM (London) | 7:00 AM (San Francisco) |
| 4:00 PM (London) | 8:00 AM (San Francisco) |
| 5:00 PM (London) | 9:00 AM (San Francisco) |
| 6:00 PM (London) | 10:00 AM (San Francisco) |
| 7:00 PM (London) | 11:00 AM (San Francisco) |
| 8:00 PM (London) | 12:00 PM (San Francisco) |
Reverse Direction
San Francisco to London Time Difference
View London from the perspective of San Francisco with reciprocal business overlap.
View Reciprocal Clocks
Reference City Profile
Current Time in London, United Kingdom
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Explore London Clocks
Target City Profile
Current Time in San Francisco, United States
Live atomic clock, daylight saving schedule, sunrise and sunset in San Francisco.
Explore San Francisco Clocks
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San Francisco is exactly 8 hours behind of London.
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