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