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