There are total 12 hours or 720 minutes from 1pm to 1am. In words, this duration is equal to twelve hours or seven hundred twenty minutes.
How many hours from
| 6AM to 2AM | 7PM to 12PM | 12AM to 10AM |
| 3AM to 9PM | 2AM to 10AM | 2PM to 9PM |
| 7PM to 9AM | 5AM to 1AM | 11AM to 2AM |
| 6AM to 1PM | 6AM to 1AM | 9AM to 6AM |
| 8AM to 7AM | 9PM to 6AM | 10PM to 7PM |
| 6PM to 12PM | 4PM to 5PM | 7PM to 5AM |
