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