There are total 13 hours or 780 minutes from 9pm to 10am. In words, this duration is equal to thirteen hours or seven hundred eighty minutes.
How many hours from
| 11PM to 12AM | 11PM to 1AM | 6PM to 4AM |
| 5PM to 11AM | 3AM to 6PM | 8PM to 3PM |
| 2PM to 7AM | 6AM to 9PM | 8PM to 12PM |
| 9PM to 5AM | 7PM to 11PM | 1AM to 10PM |
| 6AM to 6PM | 8AM to 7AM | 5AM to 3PM |
| 12AM to 5PM | 10PM to 8AM | 3PM to 5AM |
