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