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