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