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