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