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