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