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