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