There are total 10 hours or 600 minutes from 8am to 6pm. In words, this duration is equal to ten hours or six hundred minutes.
How many hours from
| 4AM to 11PM | 7AM to 10AM | 4PM to 3PM |
| 11AM to 5AM | 5PM to 9PM | 4PM to 6AM |
| 8PM to 12AM | 4AM to 10AM | 1AM to 12PM |
| 2PM to 9AM | 10AM to 1AM | 11AM to 1AM |
| 11PM to 1PM | 10PM to 7AM | 12AM to 4AM |
| 10PM to 5PM | 4PM to 10PM | 4PM to 12AM |
