There are total 1 hours or 60 minutes from 3am to 4am. In words, this duration is equal to one hours or sixty minutes.
How many hours from
| 6AM to 12PM | 10PM to 7PM | 12PM to 2PM |
| 10AM to 11AM | 6PM to 9PM | 12AM to 5AM |
| 2PM to 5AM | 6AM to 5PM | 12PM to 1AM |
| 5PM to 7AM | 10AM to 3PM | 9AM to 3AM |
| 10PM to 6PM | 2PM to 12AM | 9AM to 5AM |
| 12AM to 9PM | 2AM to 11AM | 6AM to 2PM |
