Time difference: San Francisco and Boston
Boston is 3 hours ahead of San Francisco right now.
Hour-by-hour: San Francisco → Boston
Starting from the current hour in San Francisco. Use it to pick a meeting slot that works in both cities.
| San Francisco | Boston |
|---|---|
| 11:00 | Fri 14:00 |
| 12:00 | Fri 15:00 |
| 13:00 | Fri 16:00 |
| 14:00 | Fri 17:00 |
| 15:00 | Fri 18:00 |
| 16:00 | Fri 19:00 |
| 17:00 | Fri 20:00 |
| 18:00 | Fri 21:00 |
| 19:00 | Fri 22:00 |
| 20:00 | Fri 23:00 |
| 21:00 | Sat 00:00 |
| 22:00 | Sat 01:00 |
| 23:00 | Sat 02:00 |
| 00:00 | Sat 03:00 |
| 01:00 | Sat 04:00 |
| 02:00 | Sat 05:00 |
| 03:00 | Sat 06:00 |
| 04:00 | Sat 07:00 |
| 05:00 | Sat 08:00 |
| 06:00 | Sat 09:00 |
| 07:00 | Sat 10:00 |
| 08:00 | Sat 11:00 |
| 09:00 | Sat 12:00 |
| 10:00 | Sat 13:00 |
Need a specific date and time? Open this pair in the converter →
About the San Francisco–Boston time difference
San Francisco uses the America/Los_Angeles time zone (currently UTC-7). Boston uses America/New_York (currently UTC-4). That puts Boston 3 hours ahead of San Francisco at this moment.
The gap can shift across the year if either city observes daylight saving. This page recomputes live on every visit, so the numbers above are always current — no stale tables to second-guess.
Watching the FIFA World Cup 2026? See the full host-city time-zone guide and the final kickoff time in every major zone.
Frequently asked
- What is the time difference between San Francisco and Boston?
- Boston is 3 hours ahead of San Francisco right now. San Francisco is on UTC-7; Boston is on UTC-4.
- Is Boston ahead of or behind San Francisco?
- Boston is ahead San Francisco by 3 hours.
- Does the difference change with daylight saving?
- Yes if either city observes DST. The hour-by-hour table above is recomputed live, so it stays accurate across transitions.
Reverse view
Looking at it from the other direction?