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