There are total 15 hours or 900 minutes from 4pm to 7am. In words, this duration is equal to fifteen hours or nine hundred minutes.
How many hours from
| 6AM to 10AM | 4AM to 2PM | 6AM to 1PM |
| 8PM to 5PM | 8AM to 3PM | 8PM to 7AM |
| 2AM to 10PM | 12AM to 11PM | 12PM to 9AM |
| 8AM to 7AM | 10PM to 6PM | 7AM to 1PM |
| 1AM to 5AM | 4AM to 4PM | 3PM to 11PM |
| 6AM to 8AM | 4PM to 12PM | 1PM to 7AM |
