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Time difference between London and San Francisco

Your time
Their time

Drag anywhere on the timeline to simulate a different hour.
Simulating
Business hours (9:00–17:00) Awake (7:00–22:00) Night

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About the London–San Francisco time difference

San Francisco is 8 hours behind London. When it's 9:00 in London, it's usually 1:00 in San Francisco.

Their 9–17 working days do not overlap at all, so meetings mean one side flexes into early morning or evening — use the timeline above to find the least painful slot.

The clocks above are live and daylight-saving aware. Drag the timeline to simulate any hour of the day and see what time it lands on in both London and San Francisco.

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