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