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