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