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