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