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