Sydney to San Francisco Time Difference
San Francisco is 17 hours behind Sydney. When it is noon in Sydney, it is 19:00 in San Francisco.
Sydney (UTC+10) → Los Angeles (UTC-7)
Sydney (AEST/AEDT, UTC+10/+11) is 17–19 hours ahead of San Francisco (PST/PDT, UTC−8/−7). The gap varies because Australia and the US observe DST in opposite seasons: in Australian summer (US winter), the gap is 19 hours; in Australian winter (US summer), it is 17 hours. Coordination often requires evening calls in San Francisco to reach Sydney in the morning.
🕐 Interactive Time Explorer
When it's 20:00 in Sydney, it's 03:00 in San Francisco
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Sydney & San Francisco✓ Perfect Match (1 hours)
◐ Extended Hours (7 hours)
✈️ Travel Information
Distance
11,947 km
Est. Flight Time
~15.1h
Time Difference
-17h
Work Hours Overlap
1h
Limited
🔴 Office Closed
Today 09:00
09:00 - 10:00
⏰ Quick Conversion
06:00
Sydney
13:00
San Francisco (-1)
09:00
Sydney
16:00
San Francisco (-1)
12:00
Sydney
19:00
San Francisco (-1)
15:00
Sydney
22:00
San Francisco (-1)
18:00
Sydney
01:00
San Francisco
21:00
Sydney
04:00
San Francisco
00:00
Sydney
07:00
San Francisco (-1)
03:00
Sydney
10:00
San Francisco (-1)
Frequently Asked Questions
How many hours is Sydney ahead of San Francisco?
San Francisco is 17 hours behind Sydney. When it is 12:00 noon in Sydney, it is 19:00 in San Francisco. Sydney operates on Australia/Sydney (UTC+10), while San Francisco uses America/Los Angeles (UTC-7).
What is the best time to call San Francisco from Sydney?
There is 1 hour of overlapping business time (9 AM–5 PM) between Sydney and San Francisco. The best window is 09:00–10:00 Sydney time (16:00–17:00 in San Francisco).
Does the Sydney to San Francisco time difference change throughout the year?
The time difference can shift by up to one hour when either city observes Daylight Saving Time (DST). DST transition dates differ between countries — typically March/April in the Northern Hemisphere and October in the Southern Hemisphere. Always verify the live difference above when scheduling important meetings near DST changeover dates.
Flying between Sydney and San Francisco
The distance between Sydney and San Francisco is approximately 11,947 km. A direct flight typically takes around 15.1 hours. Your arrival clock will show local San Francisco time — use our Flight Time Calculator to predict exact arrival times.