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