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