Time in San Francisco and Boston
The time difference between San Francisco, California, and Boston, Massachusetts, is 3 hours. Boston is 3 hours ahead of San Francisco.
This means 9am in San Francisco is 12pm in Boston and 5pm in San Francisco is 8pm in Boston.
San Francisco
- The current local time in San Francisco is 3:29 pm (July 11, 2026)
- San Francisco is in the Pacific Daylight Time Zone
- The time zone offset for San Francisco, United States, is UTC-07:00
Boston
- The current local time in Boston is 6:29 pm (July 11, 2026)
- Boston is in the Eastern Daylight Time Zone
- The time zone offset for Boston, United States, is UTC-04:00
How to convert San Francisco time to Boston time?
Add 3 hours to San Francisco time to get Boston time.
Time in San Francisco
00:00
Time in Boston
00:00
Use the slider above to convert San Francisco time to Boston time and view the day and night map at different times.
Day–night colors on the map:
Day
Civil twilight
Nautical twilight
Astronomical twilight
NightTime Conversion Chart
| San Francisco | Boston |
|---|---|
| 12am | 3am |
| 1am | 4am |
| 2am | 5am |
| 3am | 6am |
| 4am | 7am |
| 5am | 8am |
| 6am | 9am |
| 7am | 10am |
| 8am | 11am |
| 9am | 12pm |
| 10am | 1pm |
| 11am | 2pm |
| 12pm | 3pm |
| 1pm | 4pm |
| 2pm | 5pm |
| 3pm | 6pm |
| 4pm | 7pm |
| 5pm | 8pm |
| 6pm | 9pm |
| 7pm | 10pm |
| 8pm | 11pm |
| 9pm | 12am |
| 10pm | 1am |
| 11pm | 2am |