There are total 12 hours or 720 minutes from 9am to 9pm. In words, this duration is equal to twelve hours or seven hundred twenty minutes.
How many hours from
| 5PM to 1AM | 2PM to 8AM | 10PM to 12AM |
| 3AM to 4AM | 2AM to 6PM | 5AM to 11AM |
| 2AM to 3AM | 2PM to 3AM | 8AM to 12AM |
| 4PM to 3PM | 1PM to 5AM | 11PM to 2PM |
| 7AM to 12AM | 5PM to 10AM | 7AM to 1PM |
| 2AM to 9AM | 8PM to 7PM | 5PM to 10PM |
