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
| 9PM to 9AM | 11AM to 8AM | 10AM to 4PM |
| 11PM to 6AM | 3AM to 10PM | 11AM to 3PM |
| 8PM to 12AM | 9AM to 1PM | 5AM to 11PM |
| 10PM to 7PM | 10PM to 2AM | 10PM to 1PM |
| 4AM to 12PM | 2AM to 6PM | 7PM to 4PM |
| 8PM to 4PM | 2PM to 5AM | 8AM to 3AM |
