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