When it is 12:00 PM in Porto, it is 8:00 PM in JST.
📞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.
Porto is 8 hours behind JST.
🕐 Add 8 hours to Porto time to get JST time.
Porto uses 1 hour ahead of Universal Time (UTC+1) and JST uses 9 hours ahead of Universal Time (UTC+9).
| Porto Time | JST Time | |
|---|---|---|
| 12 AM Porto Time | ↔ | 8 AM JST Time |
| 1 AM Porto Time | ↔ | 9 AM JST Time |
| 2 AM Porto Time | ↔ | 10 AM JST Time |
| 3 AM Porto Time | ↔ | 11 AM JST Time |
| 4 AM Porto Time | ↔ | 12 PM JST Time |
| 5 AM Porto Time | ↔ | 1 PM JST Time |
| 6 AM Porto Time | ↔ | 2 PM JST Time |
| 7 AM Porto Time | ↔ | 3 PM JST Time |
| 8 AM Porto Time | ↔ | 4 PM JST Time |
| 9 AM Porto Time | ↔ | 5 PM JST Time |
| 10 AM Porto Time | ↔ | 6 PM JST Time |
| 11 AM Porto Time | ↔ | 7 PM JST Time |
| Porto Time | JST Time | |
|---|---|---|
| 12 PM Porto Time | ↔ | 8 PM JST Time |
| 1 PM Porto Time | ↔ | 9 PM JST Time |
| 2 PM Porto Time | ↔ | 10 PM JST Time |
| 3 PM Porto Time | ↔ | 11 PM JST Time |
| 4 PM Porto Time | ↔ | 12 AM JST Time |
| 5 PM Porto Time | ↔ | 1 AM JST Time |
| 6 PM Porto Time | ↔ | 2 AM JST Time |
| 7 PM Porto Time | ↔ | 3 AM JST Time |
| 8 PM Porto Time | ↔ | 4 AM JST Time |
| 9 PM Porto Time | ↔ | 5 AM JST Time |
| 10 PM Porto Time | ↔ | 6 AM JST Time |
| 11 PM Porto Time | ↔ | 7 AM JST Time |
Porto is 8 hours behind JST.
Porto is behind JST by 8 hours.
It is 5:00 PM in JST.