When it is 12:00 PM in West Greenwich, it is 1:00 AM the next day 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.
West Greenwich is 13 hours behind JST.
🕐 Add 13 hours to West Greenwich time to get JST time.
West Greenwich uses 4 hours behind Universal Time (UTC-4) and JST uses 9 hours ahead of Universal Time (UTC+9).
| West Greenwich Time | JST Time | |
|---|---|---|
| 12 AM West Greenwich Time | ↔ | 1 PM JST Time |
| 1 AM West Greenwich Time | ↔ | 2 PM JST Time |
| 2 AM West Greenwich Time | ↔ | 3 PM JST Time |
| 3 AM West Greenwich Time | ↔ | 4 PM JST Time |
| 4 AM West Greenwich Time | ↔ | 5 PM JST Time |
| 5 AM West Greenwich Time | ↔ | 6 PM JST Time |
| 6 AM West Greenwich Time | ↔ | 7 PM JST Time |
| 7 AM West Greenwich Time | ↔ | 8 PM JST Time |
| 8 AM West Greenwich Time | ↔ | 9 PM JST Time |
| 9 AM West Greenwich Time | ↔ | 10 PM JST Time |
| 10 AM West Greenwich Time | ↔ | 11 PM JST Time |
| 11 AM West Greenwich Time | ↔ | 12 AM JST Time |
| West Greenwich Time | JST Time | |
|---|---|---|
| 12 PM West Greenwich Time | ↔ | 1 AM JST Time |
| 1 PM West Greenwich Time | ↔ | 2 AM JST Time |
| 2 PM West Greenwich Time | ↔ | 3 AM JST Time |
| 3 PM West Greenwich Time | ↔ | 4 AM JST Time |
| 4 PM West Greenwich Time | ↔ | 5 AM JST Time |
| 5 PM West Greenwich Time | ↔ | 6 AM JST Time |
| 6 PM West Greenwich Time | ↔ | 7 AM JST Time |
| 7 PM West Greenwich Time | ↔ | 8 AM JST Time |
| 8 PM West Greenwich Time | ↔ | 9 AM JST Time |
| 9 PM West Greenwich Time | ↔ | 10 AM JST Time |
| 10 PM West Greenwich Time | ↔ | 11 AM JST Time |
| 11 PM West Greenwich Time | ↔ | 12 PM JST Time |
West Greenwich is 13 hours behind JST.
West Greenwich is behind JST by 13 hours.
It is 10:00 PM in JST.