Hours you're both awake
- 11 AM–11 PM in Boston = 8 AM–8 PM in San Francisco
About 12 hours a day, counting each of you awake from 8 AM to 11 PM. Set your own hours →
Long-distance city guides / Boston and San Francisco
Boston to San Francisco: time difference, best time to call, and where to meet
San Francisco is 3 hours behind Boston. The best time to call is usually 8 PM–10 PM in Boston, which is 5 PM–7 PM in San Francisco.
Boston–
San Francisco–
How far apart you are
4,334 km (2,693 mi)
About 6 hours on a non-stop flight.
Where to meet halfway
- Dallas, United States: 2,493 km (1,549 mi) from Boston, 2,383 km (1,481 mi) from San Francisco
- Denver, United States: 2,841 km (1,765 mi) from Boston, 1,525 km (947 mi) from San Francisco
- Chicago, United States: 1,366 km (849 mi) from Boston, 2,985 km (1,855 mi) from San Francisco
Making Boston–San Francisco work
- With 3 hours between you, you can share most evenings. Pick one standing call night a week anyway, so it never slides.
- Watch a show at the same time with a call open. A small gap makes live dates easy.
- Use the difference: one of you can text the other good morning before they wake.
Count down to your next visit
Set the date and send them a countdown.
Start a reunion countdown →Boston and San Francisco on one map
A personalised print of the two of you, and the distance in between.
Make your map →Stay close day to day
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Try Far Fox free →Questions couples ask
What is the time difference between Boston and San Francisco?
San Francisco is 3 hours behind Boston.
What is the best time to call between Boston and San Francisco?
The best time to call is usually 8 PM–10 PM in Boston, which is 5 PM–7 PM in San Francisco. That gives you about 12 hours a day when you are both awake, between 8 AM and 11 PM local time.
How far is Boston from San Francisco?
4,334 km (2,693 mi) in a straight line. A non-stop flight takes about 6 hours.
Where can a couple meet halfway between Boston and San Francisco?
The fairest cities to meet in are Dallas, Denver, Chicago. Dallas is 2,493 km (1,549 mi) from Boston and 2,383 km (1,481 mi) from San Francisco.