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