There are total 13 hours or 780 minutes from 8pm to 9am. In words, this duration is equal to thirteen hours or seven hundred eighty minutes.
How many hours from
| 1AM to 5PM | 12PM to 6PM | 7PM to 6PM |
| 9PM to 3AM | 11AM to 8AM | 1AM to 12AM |
| 11AM to 8AM | 7AM to 12PM | 11PM to 11AM |
| 5PM to 8PM | 3AM to 12AM | 7PM to 2PM |
| 1AM to 9PM | 7AM to 3AM | 8PM to 11AM |
| 5PM to 11PM | 6PM to 2PM | 9PM to 12AM |
