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