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
| 2AM to 1AM | 2PM to 1AM | 8PM to 3PM |
| 5PM to 6AM | 9AM to 3PM | 4PM to 2AM |
| 11AM to 12AM | 2PM to 12AM | 10AM to 9PM |
| 4PM to 1AM | 10AM to 3PM | 4PM to 1AM |
| 9AM to 10PM | 2PM to 6PM | 6PM to 3PM |
| 3PM to 5PM | 7AM to 4PM | 8PM to 1PM |
