There are total 13 hours or 780 minutes from 8am to 9pm. In words, this duration is equal to thirteen hours or seven hundred eighty minutes.
How many hours from
| 2AM to 2PM | 2AM to 8AM | 9PM to 12AM |
| 8PM to 9AM | 5AM to 11PM | 10AM to 8AM |
| 12AM to 10AM | 2AM to 6AM | 1PM to 10AM |
| 12AM to 8AM | 3AM to 2PM | 6AM to 3AM |
| 11AM to 1AM | 6AM to 9PM | 9PM to 1AM |
| 9PM to 6PM | 7AM to 10PM | 7PM to 1PM |
