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