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