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