There are total 14 hours or 840 minutes from 8am to 10pm. In words, this duration is equal to fourteen hours or eight hundred forty minutes.
How many hours from
| 9AM to 6PM | 8AM to 4PM | 9PM to 1PM |
| 8PM to 2AM | 2PM to 4PM | 6PM to 4PM |
| 8AM to 4AM | 2PM to 8PM | 8AM to 2AM |
| 9PM to 10PM | 11AM to 6AM | 5AM to 8AM |
| 12PM to 11PM | 11PM to 5PM | 9AM to 1PM |
| 3AM to 6AM | 1AM to 7PM | 1PM to 2PM |
