There are total 2 hours or 120 minutes from 4am to 6am. In words, this duration is equal to two hours or one hundred twenty minutes.
How many hours from
| 1AM to 2PM | 8AM to 11AM | 9PM to 6PM |
| 9PM to 11PM | 2AM to 12PM | 5PM to 9PM |
| 11PM to 8AM | 9AM to 7AM | 3AM to 1AM |
| 11PM to 9PM | 12AM to 7AM | 8PM to 7PM |
| 5AM to 7PM | 9PM to 2PM | 2AM to 10AM |
| 10AM to 4PM | 1AM to 6PM | 7AM to 5PM |
