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