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