There are total 3 hours or 180 minutes from 9pm to 12am. In words, this duration is equal to three hours or one hundred eighty minutes.
How many hours from
| 7AM to 12AM | 11AM to 5PM | 9AM to 2AM |
| 8AM to 5AM | 7AM to 3PM | 12PM to 9AM |
| 8AM to 3AM | 8AM to 11AM | 2PM to 7PM |
| 11PM to 4PM | 8AM to 9PM | 9AM to 10PM |
| 5PM to 11PM | 9AM to 5PM | 4PM to 10AM |
| 9PM to 10AM | 8AM to 2AM | 10PM to 7PM |
