There are total 14 hours or 840 minutes from 7am to 9pm. In words, this duration is equal to fourteen hours or eight hundred forty minutes.
How many hours from
| 1PM to 1AM | 4PM to 11AM | 3PM to 4AM | 
| 12AM to 5PM | 12AM to 7PM | 6AM to 5PM | 
| 10AM to 5PM | 12PM to 7PM | 6AM to 3PM | 
| 12AM to 7AM | 1AM to 12AM | 9AM to 9PM | 
| 5PM to 1AM | 9AM to 5PM | 12PM to 5AM | 
| 5PM to 1PM | 10PM to 9AM | 5AM to 4AM | 

