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Time difference between San Diego and London
San Diego
—
London
—
London is 8 hours ahead of San Diego right now.
Does the gap change?
The gap isn't fixed. San Diego and London both use daylight saving time, but they change their clocks on different dates, so the difference moves during the year:
- From around October 25, 2026: London ahead by 7 hours
- From around November 2, 2026: London ahead by 8 hours
- From around March 15, 2027: London ahead by 7 hours
- From around March 28, 2027: London ahead by 8 hours
Best time to meet
Normal office hours in London and San Diego don't overlap. The most workable window is 7 AM to 2 PM in San Diego, which is 3 PM to 10 PM in London, with one side starting early or finishing late.
For a recurring meeting, it's fairest to rotate which city takes the inconvenient slot.
City details
San Diego to London, hour by hour
| San Diego | London | ||
|---|---|---|---|
| 12 AM | Night | 8 AM | Early or late |
| 1 AM | Night | 9 AM | Work hours |
| 2 AM | Night | 10 AM | Work hours |
| 3 AM | Night | 11 AM | Work hours |
| 4 AM | Night | 12 PM | Work hours |
| 5 AM | Night | 1 PM | Work hours |
| 6 AM | Night | 2 PM | Work hours |
| 7 AM | Early or late | 3 PM | Work hours |
| 8 AM | Early or late | 4 PM | Work hours |
| 9 AM | Work hours | 5 PM | Early or late |
| 10 AM | Work hours | 6 PM | Early or late |
| 11 AM | Work hours | 7 PM | Early or late |
| 12 PM | Work hours | 8 PM | Early or late |
| 1 PM | Work hours | 9 PM | Early or late |
| 2 PM | Work hours | 10 PM | Night |
| 3 PM | Work hours | 11 PM | Night |
| 4 PM | Work hours | 12 AM (Thu) | Night |
| 5 PM | Early or late | 1 AM (Thu) | Night |
| 6 PM | Early or late | 2 AM (Thu) | Night |
| 7 PM | Early or late | 3 AM (Thu) | Night |
| 8 PM | Early or late | 4 AM (Thu) | Night |
| 9 PM | Early or late | 5 AM (Thu) | Night |
| 10 PM | Night | 6 AM (Thu) | Night |
| 11 PM | Night | 7 AM (Thu) | Early or late |
Based on today's clocks. Work hours are 9 AM to 5 PM.