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