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