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