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