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