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