San Francisco ↔ Sydney
Best Time to Call
Excellent overlap! The best window to call is between 14:00 and 17:00 (San Francisco time).
Sync San Francisco and Sydney easily. San Francisco is 19 hours behind Sydney. Excellent overlap! The best window to call is between 14:00 and 17:00 (San Francisco time).
Upcoming Time Change
- New York City clocks forward 1h in 11 days Mar 09
💡 Review recurring meetings scheduled during these dates to avoid sync issues.
Meeting Optimizer
Sync Score
3.3/10
-12h Current Time +12h
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Tokyo
15:44 GMT+9
Working
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New York City
01:44 EST
Sleeping
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London
06:44 GMT
Sleeping
Synchronization Context
Operating on opposite sides of the clock, these cities have virtually no overlapping business hours. Expect a 24-hour turnaround for most communications.
San Francisco Business Pulse
- Culture Innovation-focused and casual. Values disruption, speed, and technical excellence.
- Lunch Break 12:30 PM - 1:30 PM.
- Pro Tip Best reached between 10:00 AM and 4:00 PM. Expect a casual, tech-first vibe—informal language and dress are the norm. However, technical competence and speed are non-negotiable. Many in the Bay Area work non-traditional hours, but standard business times remain the safest bet.
Sydney Business Pulse
- Culture Relatively relaxed but professional. Early starts are common to maximize daylight.
- Lunch Break 12:00 PM - 1:00 PM.
- Pro Tip Due to the significant time difference with Europe and the US, early mornings (8:30 AM - 10:00 AM) are often dedicated to international syncs. For domestic calls, late mornings are best. Be mindful that many Australians start and end their day earlier than their Northern Hemisphere counterparts.
Quick Comparison
| Feature | San Francisco | Sydney |
|---|---|---|
| Timezone | America/Los_Angeles | Australia/Sydney |
| Country | USA | Australia |
| Coordinates | 37.77, -122.42 | -33.87, 151.21 |
| Population | 3,318,000 | 5,121,000 |