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