The time difference between Tucson and San Francisco is 0 hours. Tucson uses the America/Phoenix time zone (UTC-7), while San Francisco uses America/Los_Angeles (UTC-7).
| Detail | Tucson | San Francisco |
|---|---|---|
| Time Zone ID | America/Phoenix | America/Los_Angeles |
| UTC Offset | UTC-7 | UTC-7 |
| Abbreviation | MST | PDT |
| DST Active | No | Yes — currently observing |
| Country | United States | United States |
| Region | North America | North America |
There are 8 overlapping business hours between Tucson and San Francisco (assuming 9:00–17:00 in each city). The ideal window for calls and meetings is:
Use this table to quickly convert any hour from Tucson time to San Francisco time. Rows highlighted in green indicate overlapping business hours in both cities.
| Tucson | San Francisco | |
|---|---|---|
| 00:00 | 00:00 | Night |
| 01:00 | 01:00 | Night |
| 02:00 | 02:00 | Night |
| 03:00 | 03:00 | Night |
| 04:00 | 04:00 | Night |
| 05:00 | 05:00 | Night |
| 06:00 | 06:00 | |
| 07:00 | 07:00 | |
| 08:00 | 08:00 | |
| 09:00 | 09:00 | Overlap |
| 10:00 | 10:00 | Overlap |
| 11:00 | 11:00 | Overlap |
| 12:00 | 12:00 | Overlap |
| 13:00 | 13:00 | Overlap |
| 14:00 | 14:00 | Overlap |
| 15:00 | 15:00 | Overlap |
| 16:00 | 16:00 | Overlap |
| 17:00 | 17:00 | |
| 18:00 | 18:00 | |
| 19:00 | 19:00 | |
| 20:00 | 20:00 | |
| 21:00 | 21:00 | |
| 22:00 | 22:00 | Night |
| 23:00 | 23:00 | Night |
San Francisco is currently observing daylight saving time, while Tucson 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 0 hours. Tucson and San Francisco share the same current UTC offset.
Yes. One of these cities observes DST while the other does not, so the difference shifts by 1 hour when DST begins or ends.
The best window is between 09:00 and 17:00 Tucson time, which corresponds to 09:00–17:00 in San Francisco. Both sides fall within normal business hours.
No conversion is needed — both cities share the same UTC offset right now. 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.