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