There are total 7 hours or 420 minutes from 9am to 4pm. In words, this duration is equal to seven hours or four hundred twenty minutes.
How many hours from
| 7PM to 10AM | 11AM to 12AM | 3AM to 7PM |
| 11PM to 5PM | 12AM to 5PM | 5PM to 8PM |
| 7PM to 5AM | 11AM to 4AM | 9AM to 3AM |
| 8PM to 7AM | 7PM to 5PM | 7PM to 8AM |
| 8AM to 8PM | 8PM to 4AM | 2AM to 7AM |
| 4PM to 2PM | 9PM to 1PM | 3AM to 5PM |
