There are total 16 hours or 960 minutes from 4am to 8pm. In words, this duration is equal to sixteen hours or nine hundred sixty minutes.
How many hours from
| 10AM to 3PM | 9PM to 11AM | 12AM to 9PM |
| 10AM to 11PM | 10AM to 11PM | 5PM to 7AM |
| 2PM to 7AM | 8AM to 12PM | 11AM to 3AM |
| 7PM to 2AM | 3PM to 4PM | 8PM to 10PM |
| 7PM to 10PM | 2PM to 5PM | 10PM to 11PM |
| 4AM to 3PM | 8AM to 5AM | 1PM to 5AM |
