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