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