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