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