There are total 8 hours or 480 minutes from 8pm to 4am. In words, this duration is equal to eight hours or four hundred eighty minutes.
How many hours from
| 9PM to 7PM | 11PM to 9PM | 3AM to 5PM |
| 11AM to 10PM | 2PM to 3AM | 1PM to 9AM |
| 12AM to 8PM | 6AM to 9PM | 12AM to 5PM |
| 1AM to 10PM | 11AM to 2PM | 7AM to 4AM |
| 11AM to 7PM | 4PM to 12AM | 3AM to 1AM |
| 9PM to 1AM | 2PM to 10AM | 5AM to 6PM |
