There are total 8 hours or 480 minutes from 1pm to 9pm. In words, this duration is equal to eight hours or four hundred eighty minutes.
How many hours from
| 9AM to 2AM | 11AM to 2PM | 1AM to 2AM |
| 11PM to 5PM | 4PM to 12AM | 1AM to 2PM |
| 11AM to 2AM | 7PM to 8AM | 6PM to 2AM |
| 9PM to 8AM | 6AM to 9PM | 11PM to 7AM |
| 11PM to 7PM | 10AM to 2PM | 5AM to 1AM |
| 11AM to 5AM | 4PM to 7PM | 10PM to 3PM |
