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