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