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
| 6AM to 2PM | 3AM to 3PM | 8PM to 10AM |
| 5AM to 4PM | 5AM to 9AM | 1AM to 8PM |
| 11PM to 1AM | 12PM to 5PM | 9PM to 12PM |
| 12PM to 8PM | 3AM to 2AM | 4AM to 11PM |
| 3PM to 11AM | 12AM to 8PM | 9PM to 10AM |
| 11PM to 10AM | 3AM to 11AM | 8AM to 7AM |
