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