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