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