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