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
| 12AM to 1AM | 8AM to 12PM | 2AM to 7AM |
| 10AM to 8AM | 10PM to 2AM | 1PM to 8AM |
| 12PM to 9AM | 6PM to 12PM | 10AM to 7AM |
| 12PM to 7AM | 12PM to 2PM | 6PM to 5PM |
| 9PM to 1PM | 8AM to 5AM | 7AM to 6AM |
| 1AM to 3PM | 2PM to 1PM | 6PM to 4AM |
