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