When it is 12:00 PM in NST, it is 12:30 AM the next day in Seoul.
📞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.
NST is 12 hours 30 minutes behind Seoul.
🕐 Add 12 hours 30 minutes to NST time to get Seoul time.
NST uses 3 hours 30 minutes behind Universal Time (UTC-3) and Seoul uses 9 hours ahead of Universal Time (UTC+9).
| NST Time | Seoul Time | |
|---|---|---|
| 12 AM NST Time | ↔ | 12 PM Seoul Time |
| 1 AM NST Time | ↔ | 1 PM Seoul Time |
| 2 AM NST Time | ↔ | 2 PM Seoul Time |
| 3 AM NST Time | ↔ | 3 PM Seoul Time |
| 4 AM NST Time | ↔ | 4 PM Seoul Time |
| 5 AM NST Time | ↔ | 5 PM Seoul Time |
| 6 AM NST Time | ↔ | 6 PM Seoul Time |
| 7 AM NST Time | ↔ | 7 PM Seoul Time |
| 8 AM NST Time | ↔ | 8 PM Seoul Time |
| 9 AM NST Time | ↔ | 9 PM Seoul Time |
| 10 AM NST Time | ↔ | 10 PM Seoul Time |
| 11 AM NST Time | ↔ | 11 PM Seoul Time |
| NST Time | Seoul Time | |
|---|---|---|
| 12 PM NST Time | ↔ | 12 AM Seoul Time |
| 1 PM NST Time | ↔ | 1 AM Seoul Time |
| 2 PM NST Time | ↔ | 2 AM Seoul Time |
| 3 PM NST Time | ↔ | 3 AM Seoul Time |
| 4 PM NST Time | ↔ | 4 AM Seoul Time |
| 5 PM NST Time | ↔ | 5 AM Seoul Time |
| 6 PM NST Time | ↔ | 6 AM Seoul Time |
| 7 PM NST Time | ↔ | 7 AM Seoul Time |
| 8 PM NST Time | ↔ | 8 AM Seoul Time |
| 9 PM NST Time | ↔ | 9 AM Seoul Time |
| 10 PM NST Time | ↔ | 10 AM Seoul Time |
| 11 PM NST Time | ↔ | 11 AM Seoul Time |
NST is 12 hours 30 minutes behind Seoul.
NST is behind Seoul by 12 hours 30 minutes.
It is 9:30 PM in Seoul.