Best Meeting Time: London to San Francisco
🕐 Live Timezone Overlap: London & San Francisco
London and San Francisco sit 8 hours apart, which makes routine scheduling genuinely difficult. San Francisco is behind. That gap means a 9am start in San Francisco lands at 5pm in London, right at the edge of the working day. Both cities run a 9am to 6pm standard working day, so the window where those hours coincide is tight. Getting this right from the outset saves a lot of back-and-forth.
Time Difference: London and San Francisco
San Francisco is currently 8 hours behind London. The live offsets are London UTC+1 and San Francisco UTC-7. London observes daylight saving and San Francisco also observes daylight saving, so the offset shifts twice a year if both sides aren't already aligned.
London currently runs at UTC+1 (British Summer Time), while San Francisco is at UTC-7 (Pacific Daylight Time). Both cities observe DST, but their clocks do not change on the same weekend. Each autumn, UK clocks fall back one week earlier than US clocks, briefly widening the gap from 8 hours to 9 hours for that week. In spring the changeovers realign quickly, restoring the standard 8-hour difference between London and San Francisco.
Best Times to Meet
There is just 1 hour of overlap between London and San Francisco on a standard 9am to 6pm working day: 5pm to 6pm London time, which is 9am to 10am Pacific. Inside that 1-hour window, 9am is cleanest for San Francisco teams, before the calendar fills with the dense coffee-meeting culture noted across the city. For London, informal meetings between 5pm and 6pm are common in finance, so that end-of-day slot is not unusual. Book early in the week; London Fridays often wind down by 4pm.
Working Hours Overlap Explained
London operates on Europe/London (currently UTC+1). San Francisco operates on America/Los_Angeles (currently UTC-7). The table below maps a standard 9:00 AM–6:00 PM day in London to San Francisco's local time.
| London time | San Francisco time | Status |
|---|---|---|
| 9:00 AM | 1:00 AM | San Francisco outside hours |
| 10:00 AM | 2:00 AM | San Francisco outside hours |
| 11:00 AM | 3:00 AM | San Francisco outside hours |
| 12:00 PM | 4:00 AM | San Francisco outside hours |
| 1:00 PM | 5:00 AM | San Francisco outside hours |
| 2:00 PM | 6:00 AM | San Francisco outside hours |
| 3:00 PM | 7:00 AM | San Francisco outside hours |
| 4:00 PM | 8:00 AM | San Francisco just starting |
| 5:00 PM | 9:00 AM | San Francisco in business hours |
| 6:00 PM | 10:00 AM | San Francisco in business hours |
Tips for Scheduling Across London and San Francisco
- Book London to San Francisco calls for exactly 5pm London time: the only hour inside the shared working window.
- Avoid scheduling across the autumn UK clock-change week; the gap temporarily shifts to 9 hours, catching teams off guard.
- San Francisco tech teams often run 10am to 7pm Pacific, which gives one extra hour of evening overlap with London.
- London Fridays wind down by 4pm, so Thursday is the safer day to anchor a recurring London and San Francisco call.
- Check both the May Bank Holiday in London and Thanksgiving in San Francisco before locking in any November or May meeting series.
Public Holidays and Working Weeks
Both cities work Monday to Friday. UK public holidays include New Year's Day, the May Bank Holiday and Christmas Day. San Francisco observes Independence Day (4 July), Thanksgiving (fourth Thursday in November) and Christmas Day. Any London to San Francisco meeting series should cross-reference both calendars. Note also that mid-July through Labour Day brings high vacation density across the San Francisco Bay Area, which can quietly hollow out meeting attendance even on nominal working days.