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