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