Hours you're both awake
- 8 AM–3 PM in San Francisco = 4 PM–11 PM in London
About 7 hours a day, counting each of you awake from 8 AM to 11 PM. Set your own hours →
Long-distance city guides / San Francisco and London
San Francisco to London: time difference, best time to call, and where to meet
London is 8 hours ahead of San Francisco. For about 4 weeks a year, when the two cities change their clocks on different dates, the gap is 7 hours instead. The best time to call is usually 10 AM–12 PM in San Francisco, which is 6 PM–8 PM in London.
San Francisco–
London–
How far apart you are
8,617 km (5,354 mi)
About 11.5 hours on a non-stop flight.
Where to meet halfway
- Halifax, Canada: 4,873 km (3,028 mi) from San Francisco, 4,624 km (2,873 mi) from London
- Montreal, Canada: 4,084 km (2,538 mi) from San Francisco, 5,221 km (3,244 mi) from London
- Boston, United States: 4,334 km (2,693 mi) from San Francisco, 5,264 km (3,271 mi) from London
Making San Francisco–London work
- San Francisco evenings land in London's late night or early morning, so protect one window and treat it as your appointment.
- Trade a voice note when one of you wakes up. It is waiting for the other at the end of their day.
- Keep a shared list of things to tell each other, so the call is not spent catching up on logistics.
Count down to your next visit
Set the date and send them a countdown.
Start a reunion countdown →San Francisco and London on one map
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Try Far Fox free →Questions couples ask
What is the time difference between San Francisco and London?
London is 8 hours ahead of San Francisco. For about 4 weeks a year, when the two cities change their clocks on different dates, the gap is 7 hours instead.
What is the best time to call between San Francisco and London?
The best time to call is usually 10 AM–12 PM in San Francisco, which is 6 PM–8 PM in London. That gives you about 7 hours a day when you are both awake, between 8 AM and 11 PM local time.
How far is San Francisco from London?
8,617 km (5,354 mi) in a straight line. A non-stop flight takes about 11.5 hours.
Where can a couple meet halfway between San Francisco and London?
The fairest cities to meet in are Halifax, Montreal, Boston. Halifax is 4,873 km (3,028 mi) from San Francisco and 4,624 km (2,873 mi) from London.