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