San Francisco to London Time
London is 8 hours ahead of San Francisco for most of the year. The gap changes for a few weeks a year because the two places switch to daylight saving time on different dates.
London to San Francisco insteadTime difference between San Francisco and London
London is 8 hours ahead of San Francisco for most of the year.
- 2026: London is 7 hours ahead of San Francisco from Mar 8 – Mar 28, 2026, Oct 25 – Oct 31, 2026.
- 2027: London is 7 hours ahead of San Francisco from Mar 14 – Mar 27, 2027, Oct 31 – Nov 6, 2027.
San Francisco to London conversion table
| San Francisco | LondonMost of the year | LondonMar 8 – Mar 28, 2026, Oct 25 – Oct 31, 2026 |
|---|---|---|
| 12 AM | 8 AM | 7 AM |
| 1 AM | 9 AM | 8 AM |
| 2 AM | 10 AM | 9 AM |
| 3 AM | 11 AM | 10 AM |
| 4 AM | 12 PM | 11 AM |
| 5 AM | 1 PM | 12 PM |
| 6 AM | 2 PM | 1 PM |
| 7 AM | 3 PM | 2 PM |
| 8 AM | 4 PM | 3 PM |
| 9 AM | 5 PM | 4 PM |
| 10 AM | 6 PM | 5 PM |
| 11 AM | 7 PM | 6 PM |
| 12 PM | 8 PM | 7 PM |
| 1 PM | 9 PM | 8 PM |
| 2 PM | 10 PM | 9 PM |
| 3 PM | 11 PM | 10 PM |
| 4 PM | 12 AM+1 day | 11 PM |
| 5 PM | 1 AM+1 day | 12 AM+1 day |
| 6 PM | 2 AM+1 day | 1 AM+1 day |
| 7 PM | 3 AM+1 day | 2 AM+1 day |
| 8 PM | 4 AM+1 day | 3 AM+1 day |
| 9 PM | 5 AM+1 day | 4 AM+1 day |
| 10 PM | 6 AM+1 day | 5 AM+1 day |
| 11 PM | 7 AM+1 day | 6 AM+1 day |
Best time to meet
A regular 9 AM – 5 PM day doesn't overlap. If one side starts early or stays late (7 AM – 9 PM), you can meet 7 AM – 1 PM San Francisco (3 PM – 9 PM London).
Frequently asked questions
What time is it in London when it's 9 AM in San Francisco?
5 PM for most of the year. London is 8 hours ahead of San Francisco.
How many hours is London ahead of San Francisco?
Usually 8 hours. The gap changes for a few weeks a year because daylight saving time starts and ends on different dates: 2026: London is 7 hours ahead of San Francisco from Mar 8 – Mar 28, 2026, Oct 25 – Oct 31, 2026. 2027: London is 7 hours ahead of San Francisco from Mar 14 – Mar 27, 2027, Oct 31 – Nov 6, 2027.
Does San Francisco use daylight saving time?
Yes. San Francisco is UTC−8 (PST) in January and UTC−7 (PDT) in July. Mar 8, 2026: clocks go forward to UTC−7; Nov 1, 2026: clocks go back to UTC−8.
Does London use daylight saving time?
Yes. London is UTC+0 (GMT) in January and UTC+1 (BST) in July. Mar 29, 2026: clocks go forward to UTC+1; Oct 25, 2026: clocks go back to UTC+0.
When is the best time to schedule a meeting between San Francisco and London?
A regular 9 AM – 5 PM day doesn't overlap. If one side starts early or stays late (7 AM – 9 PM), you can meet 7 AM – 1 PM San Francisco (3 PM – 9 PM London).