There are total 3 hours or 180 minutes from 1am to 4am. In words, this duration is equal to three hours or one hundred eighty minutes.
How many hours from
| 1PM to 5PM | 9AM to 12PM | 1PM to 8PM |
| 2PM to 10AM | 2PM to 4AM | 5PM to 1AM |
| 12AM to 6AM | 2PM to 7PM | 7AM to 2PM |
| 7AM to 3AM | 10PM to 11AM | 4AM to 12PM |
| 11AM to 12PM | 2PM to 4PM | 6AM to 12AM |
| 3AM to 8PM | 10AM to 3PM | 7AM to 5AM |
