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