There are total 11 hours or 660 minutes from 8am to 7pm. In words, this duration is equal to eleven hours or six hundred sixty minutes.
How many hours from
| 5AM to 9AM | 2PM to 6PM | 8PM to 11AM |
| 8PM to 2PM | 1PM to 9PM | 2PM to 10AM |
| 7PM to 8PM | 5PM to 1PM | 1PM to 12AM |
| 7PM to 7AM | 6PM to 12PM | 3PM to 1PM |
| 10PM to 5AM | 2AM to 8AM | 4PM to 7PM |
| 9PM to 8PM | 9AM to 8AM | 4AM to 8AM |
