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