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