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