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