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