There are total 23 hours or 1380 minutes from 9pm to 8pm. In words, this duration is equal to twenty-three hours or one thousand three hundred eighty minutes.
How many hours from
| 6AM to 12AM | 1PM to 10PM | 6AM to 5PM |
| 3PM to 12AM | 8PM to 7AM | 8AM to 12PM |
| 4AM to 11PM | 3PM to 7PM | 7AM to 8PM |
| 9AM to 5AM | 7AM to 2AM | 7PM to 5AM |
| 1PM to 7AM | 10PM to 12AM | 3AM to 1AM |
| 10PM to 1PM | 5AM to 2PM | 9AM to 12AM |
