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