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