There are total 15 hours or 900 minutes from 4am to 7pm. In words, this duration is equal to fifteen hours or nine hundred minutes.
How many hours from
| 5PM to 8PM | 12PM to 8AM | 6PM to 5AM |
| 9AM to 8PM | 11PM to 7PM | 11AM to 10PM |
| 12PM to 9AM | 12AM to 7AM | 6PM to 1PM |
| 9PM to 10AM | 12PM to 1PM | 12PM to 7PM |
| 4PM to 8AM | 8AM to 7AM | 12PM to 1AM |
| 3PM to 10AM | 6AM to 12PM | 2AM to 3AM |
