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