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