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