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
| 1AM to 5PM | 7AM to 9AM | 10AM to 4PM |
| 9AM to 8PM | 8AM to 4PM | 7AM to 2AM |
| 3PM to 10AM | 5AM to 1PM | 10AM to 9AM |
| 4AM to 7AM | 5AM to 4AM | 5AM to 7PM |
| 3AM to 1PM | 4AM to 9PM | 9AM to 1AM |
| 8AM to 5PM | 10AM to 2PM | 10AM to 3AM |
