When it is 12:00 PM in Williamstown, it is 7:30 PM the previous day in San Francisco.
📞The best time to schedule a call is between 9 AM and 10 AM in Williamstown, which is between 4 PM and 5 PM in San Francisco.
Williamstown is 16 hours 30 minutes ahead of San Francisco.
🕐 Subtract 16 hours 30 minutes from Williamstown time to get San Francisco time.
Williamstown uses 9 hours 30 minutes ahead of Universal Time (UTC+9) and San Francisco uses 7 hours behind Universal Time (UTC-7).
| Williamstown Time | San Francisco Time | |
|---|---|---|
| 12 AM Williamstown Time | ↔ | ☼ 7 AM San Francisco Time |
| 1 AM Williamstown Time | ↔ | ☼ 8 AM San Francisco Time |
| 2 AM Williamstown Time | ↔ | ☼ 9 AM San Francisco Time |
| 3 AM Williamstown Time | ↔ | ☼ 10 AM San Francisco Time |
| 4 AM Williamstown Time | ↔ | ☼ 11 AM San Francisco Time |
| 5 AM Williamstown Time | ↔ | ☼ 12 PM San Francisco Time |
| 6 AM Williamstown Time | ↔ | ☼ 1 PM San Francisco Time |
| ☼ 7 AM Williamstown Time | ↔ | ☼ 2 PM San Francisco Time |
| ☼ 8 AM Williamstown Time | ↔ | ☼ 3 PM San Francisco Time |
| ☼ 9 AM Williamstown Time | ↔ | ☼ 4 PM San Francisco Time |
| ☼ 10 AM Williamstown Time | ↔ | ☼ 5 PM San Francisco Time |
| ☼ 11 AM Williamstown Time | ↔ | ☼ 6 PM San Francisco Time |
| Williamstown Time | San Francisco Time | |
|---|---|---|
| ☼ 12 PM Williamstown Time | ↔ | ☼ 7 PM San Francisco Time |
| ☼ 1 PM Williamstown Time | ↔ | ☼ 8 PM San Francisco Time |
| ☼ 2 PM Williamstown Time | ↔ | 9 PM San Francisco Time |
| ☼ 3 PM Williamstown Time | ↔ | 10 PM San Francisco Time |
| ☼ 4 PM Williamstown Time | ↔ | 11 PM San Francisco Time |
| ☼ 5 PM Williamstown Time | ↔ | 12 AM San Francisco Time |
| 6 PM Williamstown Time | ↔ | 1 AM San Francisco Time |
| 7 PM Williamstown Time | ↔ | 2 AM San Francisco Time |
| 8 PM Williamstown Time | ↔ | 3 AM San Francisco Time |
| 9 PM Williamstown Time | ↔ | 4 AM San Francisco Time |
| 10 PM Williamstown Time | ↔ | ☼ 5 AM San Francisco Time |
| 11 PM Williamstown Time | ↔ | ☼ 6 AM San Francisco Time |
Williamstown is 16 hours 30 minutes ahead of San Francisco.
Williamstown is ahead of San Francisco by 16 hours 30 minutes.
It is 4:30 PM the previous day in San Francisco.