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