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