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