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