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