When it is 12:00 PM in Tokyo, it is 8:00 PM the previous day in San Diego.
📞There is no overlap during standard 9-to-5 business hours, so a call may need to be early or late in the day for one side.
Tokyo is 16 hours ahead of San Diego.
🕐 Subtract 16 hours from Tokyo time to get San Diego time.
Tokyo uses 9 hours ahead of Universal Time (UTC+9) and San Diego uses 7 hours behind Universal Time (UTC-7).
| Tokyo Time | San Diego Time | |
|---|---|---|
| 12 AM Tokyo Time | ↔ | ☼ 8 AM San Diego Time |
| 1 AM Tokyo Time | ↔ | ☼ 9 AM San Diego Time |
| 2 AM Tokyo Time | ↔ | ☼ 10 AM San Diego Time |
| 3 AM Tokyo Time | ↔ | ☼ 11 AM San Diego Time |
| ☼ 4 AM Tokyo Time | ↔ | ☼ 12 PM San Diego Time |
| ☼ 5 AM Tokyo Time | ↔ | ☼ 1 PM San Diego Time |
| ☼ 6 AM Tokyo Time | ↔ | ☼ 2 PM San Diego Time |
| ☼ 7 AM Tokyo Time | ↔ | ☼ 3 PM San Diego Time |
| ☼ 8 AM Tokyo Time | ↔ | ☼ 4 PM San Diego Time |
| ☼ 9 AM Tokyo Time | ↔ | ☼ 5 PM San Diego Time |
| ☼ 10 AM Tokyo Time | ↔ | ☼ 6 PM San Diego Time |
| ☼ 11 AM Tokyo Time | ↔ | ☼ 7 PM San Diego Time |
| Tokyo Time | San Diego Time | |
|---|---|---|
| ☼ 12 PM Tokyo Time | ↔ | ☼ 8 PM San Diego Time |
| ☼ 1 PM Tokyo Time | ↔ | 9 PM San Diego Time |
| ☼ 2 PM Tokyo Time | ↔ | 10 PM San Diego Time |
| ☼ 3 PM Tokyo Time | ↔ | 11 PM San Diego Time |
| ☼ 4 PM Tokyo Time | ↔ | 12 AM San Diego Time |
| ☼ 5 PM Tokyo Time | ↔ | 1 AM San Diego Time |
| ☼ 6 PM Tokyo Time | ↔ | 2 AM San Diego Time |
| ☼ 7 PM Tokyo Time | ↔ | 3 AM San Diego Time |
| 8 PM Tokyo Time | ↔ | 4 AM San Diego Time |
| 9 PM Tokyo Time | ↔ | ☼ 5 AM San Diego Time |
| 10 PM Tokyo Time | ↔ | ☼ 6 AM San Diego Time |
| 11 PM Tokyo Time | ↔ | ☼ 7 AM San Diego Time |
Tokyo is 16 hours ahead of San Diego.
Tokyo is ahead of San Diego by 16 hours.
It is 5:00 PM the previous day in San Diego.