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