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
| 10AM to 5PM | 7AM to 12PM | 8AM to 10AM |
| 9PM to 8PM | 6PM to 7AM | 12PM to 4PM |
| 9PM to 3PM | 2AM to 7AM | 5PM to 11AM |
| 5AM to 9PM | 9AM to 8AM | 1PM to 5AM |
| 12PM to 12AM | 8AM to 12AM | 10AM to 3AM |
| 6PM to 9PM | 10AM to 12PM | 8AM to 11AM |
