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
| 3AM to 7PM | 5PM to 2AM | 12PM to 2PM |
| 7AM to 3AM | 4PM to 10PM | 4AM to 12PM |
| 3AM to 3PM | 9PM to 9AM | 6AM to 8PM |
| 1PM to 6PM | 2AM to 9AM | 4PM to 8PM |
| 1AM to 10PM | 3PM to 11AM | 8PM to 7AM |
| 5PM to 4PM | 3AM to 2PM | 10AM to 7AM |
