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
| 11PM to 2AM | 7AM to 5AM | 2AM to 3PM |
| 5PM to 5AM | 5AM to 4AM | 6PM to 11AM |
| 4AM to 2PM | 10AM to 7PM | 4AM to 7AM |
| 1AM to 5PM | 11PM to 9AM | 3PM to 1AM |
| 3AM to 6AM | 4AM to 6AM | 1AM to 9PM |
| 9PM to 3AM | 6AM to 2AM | 7PM to 8PM |
