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