The time difference between Adelaide and San Francisco is 17 hours and 30 minutes. When it is 12:00 noon in Adelaide, it is 18:30 in San Francisco. Adelaide uses the Australia/Adelaide time zone (UTC+10:30), while San Francisco uses America/Los_Angeles (UTC-7).
| Detail | Adelaide | San Francisco |
|---|---|---|
| Time Zone ID | Australia/Adelaide | America/Los_Angeles |
| UTC Offset | UTC+10:30 | UTC-7 |
| Abbreviation | ACDT | PDT |
| DST Active | Yes — currently observing | Yes — currently observing |
| Country | Australia | United States |
| Region | Oceania | North America |
With a 17 hours and 30 minutes gap, there is no standard business-hours overlap between Adelaide and San Francisco. One party will need to adjust their schedule. Early mornings in Adelaide or late evenings in San Francisco tend to be the most practical compromise.
Use this table to quickly convert any hour from Adelaide time to San Francisco time. Rows highlighted in green indicate overlapping business hours in both cities.
| Adelaide | San Francisco | |
|---|---|---|
| 00:00 | 06:30 (-1 day) | Night |
| 01:00 | 07:30 (-1 day) | Night |
| 02:00 | 08:30 (-1 day) | Night |
| 03:00 | 09:30 (-1 day) | Night |
| 04:00 | 10:30 (-1 day) | Night |
| 05:00 | 11:30 (-1 day) | Night |
| 06:00 | 12:30 (-1 day) | |
| 07:00 | 13:30 (-1 day) | |
| 08:00 | 14:30 (-1 day) | |
| 09:00 | 15:30 (-1 day) | Overlap |
| 10:00 | 16:30 (-1 day) | Overlap |
| 11:00 | 17:30 (-1 day) | |
| 12:00 | 18:30 (-1 day) | |
| 13:00 | 19:30 (-1 day) | |
| 14:00 | 20:30 (-1 day) | |
| 15:00 | 21:30 (-1 day) | |
| 16:00 | 22:30 (-1 day) | |
| 17:00 | 23:30 (-1 day) | |
| 18:00 | 00:30 | |
| 19:00 | 01:30 | |
| 20:00 | 02:30 | |
| 21:00 | 03:30 | |
| 22:00 | 04:30 | Night |
| 23:00 | 05:30 | Night |
Both Adelaide and San Francisco are currently observing daylight saving time. The current 17 hours and 30 minutes difference reflects both cities' DST offsets. When one city switches back to standard time before the other, the gap will temporarily change by 1 hour.
The time difference is 17 hours and 30 minutes. San Francisco is 17 hours and 30 minutes behind Adelaide.
Yes. Both cities observe daylight saving time, but they may switch on different dates, causing the gap to shift by 1 hour temporarily.
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.
Subtract 17 hours and 30 minutes from Adelaide time to get San Francisco 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.