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