Sydney → San Francisco: Time Difference
San Francisco is 17 hours behind Sydney.
How the difference works
Sydney uses Australia/Sydney (UTC+10 standard time) and San Francisco uses America/Los_Angeles (UTC-8 standard time) — a standard-time gap of 18 hours behind Sydney. Both cities observe daylight saving time, but they switch on different dates, so the gap can temporarily change around those transitions.
Distance: about 11,948 km (7,424 mi) great-circle distance.
Sydney → San Francisco, hour by hour
| Sydney | San Francisco | Best hours to call |
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Frequently asked questions
What is the time difference between Sydney and San Francisco?
In standard time, San Francisco is 18 hours behind Sydney. Both cities observe daylight saving time, but they switch on different dates, so the gap can temporarily change around those transitions.
When it is 9:00 in Sydney, what time is it in San Francisco?
In standard time it is 15:00 the previous day in San Francisco. During daylight saving periods the answer can move by an hour — the live table on this page always reflects today's rules.
How far is San Francisco from Sydney?
About 11,948 km (7,424 miles) as the crow flies, computed from city-center coordinates.