San Francisco to London time difference
San Francisco
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London
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Difference right now: —
San Francisco (United States) and London (United Kingdom) are 8 hours apart, with London ahead of San Francisco right now. San Francisco is UTC−7; London is UTC+1. Silicon Valley product and engineering standups. The clock is the same Pacific Time as Los Angeles. European finance and HQ calls. British Summer Time runs from late March to late October. Weekday 09:00–18:00 overlaps for 1 hour. The figures are computed for 2026年10月19日 Japan time from the timezone database. The clocks at the top update every second in your browser.
Current difference
When it is noon in San Francisco, it is 20:00 in London. The gap is 8 hours (London minus San Francisco).
Does daylight saving change the gap?
Just after Oct 25, 2026 01:59 London time, the clock reads Oct 25, 2026 01:00 and the offset moves from UTC+1 to UTC+0. The San Francisco–London gap goes from London 8 hours ahead to London 7 hours ahead. Just after Nov 1, 2026 01:59 San Francisco time, the clock reads Nov 1, 2026 01:00 and the offset moves from UTC−7 to UTC−8. The San Francisco–London gap goes from London 7 hours ahead to London 8 hours ahead.
24-hour comparison
One civil day in San Francisco, and the matching clock in London. Green means both cities are inside 09:00–18:00. Amber is the 07:00–22:00 compromise.
| San Francisco | London |
|---|---|
| 00:00 | 08:00 |
| 01:00 | 09:00 |
| 02:00 | 10:00 |
| 03:00 | 11:00 |
| 04:00 | 12:00 |
| 05:00 | 13:00 |
| 06:00 | 14:00 |
| 07:00 | 15:00 |
| 08:00 | 16:00 |
| 09:00 | 17:00 |
| 10:00 | 18:00 |
| 11:00 | 19:00 |
| 12:00 | 20:00 |
| 13:00 | 21:00 |
| 14:00 | 22:00 |
| 15:00 | 23:00 |
| 16:00 | next day 00:00 |
| 17:00 | next day 01:00 |
| 18:00 | next day 02:00 |
| 19:00 | next day 03:00 |
| 20:00 | next day 04:00 |
| 21:00 | next day 05:00 |
| 22:00 | next day 06:00 |
| 23:00 | next day 07:00 |
- Both cities 09:00–18:00
- 07:00–22:00 compromise
Best time for a meeting
Weekday 09:00–18:00 overlaps at San Francisco 09:00–10:00 (London 17:00–18:00). Both sides stay inside a normal working day. Those hours are the green rows.
FAQ
- What is the time difference between San Francisco and London right now?
- They are 8 hours apart, with London ahead of San Francisco. San Francisco is UTC−7 and London is UTC+1 as of 2026年10月19日 Japan time.
- When it is noon in San Francisco, what time is it in London?
- Noon in San Francisco is 20:00 in London.
- Does daylight saving change the difference?
- Just after Oct 25, 2026 01:59 London time, the clock reads Oct 25, 2026 01:00 and the offset moves from UTC+1 to UTC+0. The San Francisco–London gap goes from London 8 hours ahead to London 7 hours ahead. Just after Nov 1, 2026 01:59 San Francisco time, the clock reads Nov 1, 2026 01:00 and the offset moves from UTC−7 to UTC−8. The San Francisco–London gap goes from London 7 hours ahead to London 8 hours ahead.
- What is the best time for a meeting between San Francisco and London?
- Weekday 09:00–18:00 overlaps at San Francisco 09:00–10:00 (London 17:00–18:00). Both sides stay inside a normal working day. Those hours are the green rows.
- What is the difference from London back to San Francisco?
- San Francisco is 8 hours behind London. On Autoki, each person marks availability in their own city.