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