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