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