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