There are total 9 hours or 540 minutes from 1pm to 10pm. In words, this duration is equal to nine hours or five hundred forty minutes.
How many hours from
| 5AM to 3PM | 1PM to 8AM | 9AM to 7AM |
| 8PM to 1PM | 11PM to 10PM | 10AM to 8AM |
| 6AM to 7PM | 4AM to 10AM | 12PM to 2PM |
| 1AM to 9AM | 12AM to 2AM | 9AM to 2PM |
| 9AM to 11PM | 4AM to 8AM | 8PM to 9PM |
| 12AM to 5PM | 6PM to 8PM | 10AM to 8PM |
