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