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
| 12AM to 1PM | 6AM to 12AM | 11AM to 7PM |
| 1AM to 3PM | 3AM to 1PM | 9PM to 9AM |
| 3AM to 11PM | 5AM to 7AM | 7AM to 11AM |
| 11AM to 1PM | 9AM to 12PM | 6PM to 8AM |
| 9PM to 8PM | 9AM to 2PM | 7PM to 7AM |
| 8AM to 10AM | 7PM to 2PM | 6AM to 7PM |
