The time difference between San Francisco and Sydney is 17 hours. When it is 12:00 noon in San Francisco, it is 05:00 in Sydney. San Francisco uses the America/Los_Angeles time zone (UTC-7), while Sydney uses Australia/Sydney (UTC+10).
| Detail | San Francisco | Sydney |
|---|---|---|
| Time Zone ID | America/Los_Angeles | Australia/Sydney |
| UTC Offset | UTC-7 | UTC+10 |
| Abbreviation | PDT | AEST |
| DST Active | Yes — currently observing | No |
| Country | United States | Australia |
| Region | North America | Oceania |
With a 17 hours gap, there is no standard business-hours overlap between San Francisco and Sydney. One party will need to adjust their schedule. Early mornings in Sydney or late evenings in San Francisco tend to be the most practical compromise.
Use this table to quickly convert any hour from San Francisco time to Sydney time. Rows highlighted in green indicate overlapping business hours in both cities.
| San Francisco | Sydney | |
|---|---|---|
| 00:00 | 17:00 | Night |
| 01:00 | 18:00 | Night |
| 02:00 | 19:00 | Night |
| 03:00 | 20:00 | Night |
| 04:00 | 21:00 | Night |
| 05:00 | 22:00 | Night |
| 06:00 | 23:00 | |
| 07:00 | 00:00 (+1 day) | |
| 08:00 | 01:00 (+1 day) | |
| 09:00 | 02:00 (+1 day) | |
| 10:00 | 03:00 (+1 day) | |
| 11:00 | 04:00 (+1 day) | |
| 12:00 | 05:00 (+1 day) | |
| 13:00 | 06:00 (+1 day) | |
| 14:00 | 07:00 (+1 day) | |
| 15:00 | 08:00 (+1 day) | |
| 16:00 | 09:00 (+1 day) | Overlap |
| 17:00 | 10:00 (+1 day) | |
| 18:00 | 11:00 (+1 day) | |
| 19:00 | 12:00 (+1 day) | |
| 20:00 | 13:00 (+1 day) | |
| 21:00 | 14:00 (+1 day) | |
| 22:00 | 15:00 (+1 day) | Night |
| 23:00 | 16:00 (+1 day) | Night |
San Francisco is currently observing daylight saving time, while Sydney is on standard time. When San Francisco switches back to standard time, the difference between these two cities will shift by 1 hour.
The time difference is 17 hours. Sydney is 17 hours ahead of San Francisco.
Yes. One of these cities observes DST while the other does not, so the difference shifts by 1 hour when DST begins or ends.
There is no ideal window during standard business hours. Consider scheduling at the edges — early morning for the city that is ahead and late afternoon for the city that is behind.
Add 17 hours to San Francisco time to get Sydney time. Use the hour-by-hour table above for a quick reference.
For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.