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