San Francisco, United States
Sat, Jul 4, 2026 07:37
- Timezone
- America/Los_Angeles
- UTC offset
- UTC-07:00
- Daylight saving
- Yes
San Francisco and London Time Difference
Compare San Francisco vs London time, current local times, UTC offset difference, daylight saving status, and the best time to plan meetings or travel.
Quick Answer
What is the time difference between San Francisco and London?
The live comparison below shows both local times, current UTC offsets, daylight saving status, and whether London is ahead of or behind San Francisco.
Current time difference
London, United Kingdom
Sat, Jul 4, 2026 15:37
- Timezone
- Europe/London
- UTC offset
- UTC+01:00
- Daylight saving
- Yes
Time difference
London is 8 hours ahead of San Francisco
UTC offset difference
+08:00
Suggested call window
Sat, Jul 4, 08:00-10:00 / Sat, Jul 4, 16:00-18:00
Calculated using initiator awake hours of 08:00-23:00 and recipient office hours of 09:00-18:00.
Dynamic Time Difference
San Francisco is 8 hours behind London
The difference changes during 2026 because San Francisco changes UTC offset during the year and London changes UTC offset during the year. Jan 1-Mar 7: San Francisco is 8 hours behind London; Mar 8-Mar 28: San Francisco is 7 hours behind London; Mar 29-Oct 24: San Francisco is 8 hours behind London; Oct 25-Oct 31: San Francisco is 7 hours behind London; Nov 1-Dec 31: San Francisco is 8 hours behind London.
San Francisco
UTC-07:00 · Seasonal clock changes; DST is active now
London
UTC+01:00 · Seasonal clock changes; DST is active now
Business Call Window
09:00-18:00 work-hour overlap
Both 09:00-18:00 workdays overlap. A practical window is 09:00-10:00 in San Francisco, which is 17:00-18:00 in London.
San Francisco: 09:00-10:00
London: 17:00-18:00
24-Hour Conversion Table
San Francisco to London hourly time conversion
The table uses today's active UTC offsets. Seasonal rows can shift when daylight saving time changes.
| 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 | 00:00 (next day) |
| 17:00 | 01:00 (next day) |
| 18:00 | 02:00 (next day) |
| 19:00 | 03:00 (next day) |
| 20:00 | 04:00 (next day) |
| 21:00 | 05:00 (next day) |
| 22:00 | 06:00 (next day) |
| 23:00 | 07:00 (next day) |
FAQ
What is the current time difference between San Francisco and London?
San Francisco is 8 hours behind London. This uses the active IANA timezone offsets for today.
When does the San Francisco-London time difference change in 2026?
The difference changes during 2026 because San Francisco changes UTC offset during the year and London changes UTC offset during the year. Jan 1-Mar 7: San Francisco is 8 hours behind London; Mar 8-Mar 28: San Francisco is 7 hours behind London; Mar 29-Oct 24: San Francisco is 8 hours behind London; Oct 25-Oct 31: San Francisco is 7 hours behind London; Nov 1-Dec 31: San Francisco is 8 hours behind London.
What are the current UTC offsets for San Francisco and London?
San Francisco is currently UTC-07:00; London is currently UTC+01:00.
Which direction does the clock change when flying from San Francisco to London?
Travelers from San Francisco to London move their clock forward by 8 hours.
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