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