When it is 12:00 PM in JST, 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.
JST is 16 hours ahead of San Diego.
🕐 Subtract 16 hours from JST time to get San Diego time.
JST uses 9 hours ahead of Universal Time (UTC+9) and San Diego uses 7 hours behind Universal Time (UTC-7).
| JST Time | San Diego Time | |
|---|---|---|
| 12 AM JST Time | ↔ | 8 AM San Diego Time |
| 1 AM JST Time | ↔ | 9 AM San Diego Time |
| 2 AM JST Time | ↔ | 10 AM San Diego Time |
| 3 AM JST Time | ↔ | 11 AM San Diego Time |
| 4 AM JST Time | ↔ | 12 PM San Diego Time |
| 5 AM JST Time | ↔ | 1 PM San Diego Time |
| 6 AM JST Time | ↔ | 2 PM San Diego Time |
| 7 AM JST Time | ↔ | 3 PM San Diego Time |
| 8 AM JST Time | ↔ | 4 PM San Diego Time |
| 9 AM JST Time | ↔ | 5 PM San Diego Time |
| 10 AM JST Time | ↔ | 6 PM San Diego Time |
| 11 AM JST Time | ↔ | 7 PM San Diego Time |
| JST Time | San Diego Time | |
|---|---|---|
| 12 PM JST Time | ↔ | 8 PM San Diego Time |
| 1 PM JST Time | ↔ | 9 PM San Diego Time |
| 2 PM JST Time | ↔ | 10 PM San Diego Time |
| 3 PM JST Time | ↔ | 11 PM San Diego Time |
| 4 PM JST Time | ↔ | 12 AM San Diego Time |
| 5 PM JST Time | ↔ | 1 AM San Diego Time |
| 6 PM JST Time | ↔ | 2 AM San Diego Time |
| 7 PM JST Time | ↔ | 3 AM San Diego Time |
| 8 PM JST Time | ↔ | 4 AM San Diego Time |
| 9 PM JST Time | ↔ | 5 AM San Diego Time |
| 10 PM JST Time | ↔ | 6 AM San Diego Time |
| 11 PM JST Time | ↔ | 7 AM San Diego Time |
JST is 16 hours ahead of San Diego.
JST is ahead of San Diego by 16 hours.
It is 5:00 PM the previous day in San Diego.