Time difference
Time difference between San Francisco and London
London is 8 hours ahead of San Francisco.
San Francisco, USA
05:00:00
Wednesday, 22 Apr 2026
PDT · UTC-07:00
London, UK
13:00:00
Wednesday, 22 Apr 2026
GMT+1 · UTC+01:00
Convert specific times
Need an exact time, not just the offset?
Related time differences
Frequently asked questions
- How many hours is London ahead of San Francisco?
- London is 8 hours ahead of San Francisco.
- Does the time difference between San Francisco and London change?
- No — neither city observes daylight saving in a way that changes this pair's gap, so the difference is stable year-round.
- What time zone does San Francisco use?
- San Francisco uses America/Los_Angeles (PDT, UTC-07:00).
- What time zone does London use?
- London uses Europe/London (GMT+1, UTC+01:00).