When it is 12:00 PM in Casper, it is 3:00 AM the next day in Tokyo.
📞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.
Casper is 15 hours behind Tokyo.
🕐 Add 15 hours to Casper time to get Tokyo time.
Casper uses 6 hours behind Universal Time (UTC-6) and Tokyo uses 9 hours ahead of Universal Time (UTC+9).
| Casper Time | Tokyo Time | |
|---|---|---|
| 12 AM Casper Time | ↔ | ☼ 3 PM Tokyo Time |
| 1 AM Casper Time | ↔ | ☼ 4 PM Tokyo Time |
| 2 AM Casper Time | ↔ | ☼ 5 PM Tokyo Time |
| 3 AM Casper Time | ↔ | ☼ 6 PM Tokyo Time |
| 4 AM Casper Time | ↔ | ☼ 7 PM Tokyo Time |
| ☼ 5 AM Casper Time | ↔ | 8 PM Tokyo Time |
| ☼ 6 AM Casper Time | ↔ | 9 PM Tokyo Time |
| ☼ 7 AM Casper Time | ↔ | 10 PM Tokyo Time |
| ☼ 8 AM Casper Time | ↔ | 11 PM Tokyo Time |
| ☼ 9 AM Casper Time | ↔ | 12 AM Tokyo Time |
| ☼ 10 AM Casper Time | ↔ | 1 AM Tokyo Time |
| ☼ 11 AM Casper Time | ↔ | 2 AM Tokyo Time |
| Casper Time | Tokyo Time | |
|---|---|---|
| ☼ 12 PM Casper Time | ↔ | 3 AM Tokyo Time |
| ☼ 1 PM Casper Time | ↔ | ☼ 4 AM Tokyo Time |
| ☼ 2 PM Casper Time | ↔ | ☼ 5 AM Tokyo Time |
| ☼ 3 PM Casper Time | ↔ | ☼ 6 AM Tokyo Time |
| ☼ 4 PM Casper Time | ↔ | ☼ 7 AM Tokyo Time |
| ☼ 5 PM Casper Time | ↔ | ☼ 8 AM Tokyo Time |
| ☼ 6 PM Casper Time | ↔ | ☼ 9 AM Tokyo Time |
| ☼ 7 PM Casper Time | ↔ | ☼ 10 AM Tokyo Time |
| ☼ 8 PM Casper Time | ↔ | ☼ 11 AM Tokyo Time |
| 9 PM Casper Time | ↔ | ☼ 12 PM Tokyo Time |
| 10 PM Casper Time | ↔ | ☼ 1 PM Tokyo Time |
| 11 PM Casper Time | ↔ | ☼ 2 PM Tokyo Time |
Casper is 15 hours behind Tokyo.
Casper is behind Tokyo by 15 hours.
It is 12:00 AM the next day in Tokyo.