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
| 2PM to 9PM | 10PM to 8PM | 2AM to 11PM |
| 6AM to 7PM | 8PM to 12PM | 3PM to 7AM |
| 6PM to 10AM | 5PM to 3PM | 2PM to 5AM |
| 12AM to 3AM | 8AM to 7PM | 11PM to 10AM |
| 8AM to 9PM | 6AM to 9AM | 7AM to 9AM |
| 2AM to 4PM | 3PM to 1AM | 6AM to 9AM |
