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