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