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