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