Meeting time
Best time to meet: London and San Francisco
London is 8 hours ahead of San Francisco right now, so their working days do not overlap. The time that asks least of both is 4:30 PM in London, which is 8:30 AM in San Francisco — one of you starts early or stays late.
Tue 2:46 PMLondon · Greenwich Mean TimeTue 6:46 AMSan Francisco · Pacific Standard Time
Hour by hour
With the clocks as they are on November 10, 2026, London time on the left. A working day here is 9 AM to 5 PM.
| London | San Francisco | |
|---|---|---|
| 6 AM | 10 PM day before | Both off |
| 7 AM | 11 PM day before | Both off |
| 8 AM | 12 AM | Both off |
| 9 AM | 1 AM | London at work |
| 10 AM | 2 AM | London at work |
| 11 AM | 3 AM | London at work |
| 12 PM | 4 AM | London at work |
| 1 PM | 5 AM | London at work |
| 2 PM | 6 AM | London at work |
| 3 PM | 7 AM | London at work |
| 4 PM | 8 AM | London at work |
| 5 PM | 9 AM | San Francisco at work |
| 6 PM | 10 AM | San Francisco at work |
| 7 PM | 11 AM | San Francisco at work |
| 8 PM | 12 PM | San Francisco at work |
| 9 PM | 1 PM | San Francisco at work |
| 10 PM | 2 PM | San Francisco at work |
When the clocks change
The gap moves when either city changes its clocks. The next twelve months:
| Dates | London is | Both at work (London time) | Easiest (London / San Francisco) |
|---|---|---|---|
| Now to March 14, 2027 | 8 hours ahead | None | 4:30 PM / 8:30 AM |
| March 14, 2027 to March 28, 2027 clocks in San Francisco go forward | 7 hours ahead | 4 PM–5 PM (1 hour) | 4 PM / 9 AM |
| March 28, 2027 to October 31, 2027 clocks in London go forward | 8 hours ahead | None | 4:30 PM / 8:30 AM |
| October 31, 2027 to November 7, 2027 clocks in London go back | 7 hours ahead | 4 PM–5 PM (1 hour) | 4 PM / 9 AM |
| November 7, 2027 onward clocks in San Francisco go back | 8 hours ahead | None | 4:30 PM / 8:30 AM |
Questions people ask
What time is it in San Francisco when it is 9 AM in London?
1 AM in San Francisco, while London is 8 hours ahead.
1 AM in San Francisco, while London is 8 hours ahead.
When is the best time for a call between London and San Francisco?
4:30 PM in London, which is 8:30 AM in San Francisco. Their working days do not overlap, so this is the fairest time for both.
4:30 PM in London, which is 8:30 AM in San Francisco. Their working days do not overlap, so this is the fairest time for both.
Does the time difference between London and San Francisco change during the year?
Yes — it changes 4 times in the next twelve months, when the clocks go forward or back; the dates are in the table above.
Yes — it changes 4 times in the next twelve months, when the clocks go forward or back; the dates are in the table above.
More cities
New York and London3 hours of shared working day · meet at 10 AM New York timeNew York and San Francisco5 hours of shared working day · meet at 1:30 PM New York timeLondon and Bangalore2 hours 30 minutes of shared working day · meet at 10 AM London timeLondon and SingaporeNo shared working hours · fairest at 8:30 AM London timeSan Francisco and BangaloreNo shared working hours · fairest at 6 PM San Francisco timeSan Francisco and SingaporeNo shared working hours · fairest at 4:30 PM San Francisco timeLondon and SydneyNo shared working hours · fairest at 7 AM London timeNew York and BangaloreNo shared working hours · fairest at 7:30 AM New York timeNew York and SingaporeNo shared working hours · fairest at 6 PM New York timeBangalore and Singapore5 hours 30 minutes of shared working day · meet at 11 AM Bangalore timeNew York and SydneyNo shared working hours · fairest at 4:30 PM New York time
Every city from London · Every city from San Francisco · All cities · Plan across more than two cities
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