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