There are total 12 hours or 720 minutes from 9pm to 9am. In words, this duration is equal to twelve hours or seven hundred twenty minutes.
How many hours from
| 7PM to 12AM | 11PM to 12AM | 7AM to 11PM |
| 12AM to 6AM | 10PM to 3PM | 10AM to 7PM |
| 12PM to 3PM | 1PM to 1AM | 6PM to 11PM |
| 1PM to 11PM | 3AM to 8PM | 5AM to 2AM |
| 5PM to 10PM | 8PM to 9AM | 1AM to 5AM |
| 10AM to 1PM | 12PM to 9AM | 3AM to 7PM |
