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