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