There are total 2 hours or 120 minutes from 9pm to 11pm. In words, this duration is equal to two hours or one hundred twenty minutes.
How many hours from
| 6AM to 7AM | 12AM to 11PM | 1AM to 8PM |
| 11AM to 2PM | 11PM to 9PM | 10AM to 4PM |
| 4AM to 3PM | 12PM to 4PM | 9AM to 10AM |
| 8PM to 12AM | 6AM to 5PM | 7PM to 6PM |
| 5AM to 7PM | 9PM to 6AM | 1PM to 10AM |
| 10AM to 5AM | 4AM to 6PM | 1PM to 7PM |
