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