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