There are total 1 hours or 60 minutes from 4am to 5am. In words, this duration is equal to one hours or sixty minutes.
How many hours from
| 12AM to 11PM | 4PM to 7AM | 5PM to 12AM |
| 11PM to 2AM | 5AM to 2AM | 4AM to 1AM |
| 7PM to 12AM | 7AM to 11PM | 9AM to 4PM |
| 12AM to 6AM | 7PM to 9PM | 8PM to 6AM |
| 5AM to 11AM | 1AM to 12PM | 5PM to 10PM |
| 7PM to 2PM | 2AM to 9AM | 5AM to 4PM |
