There are total 15 hours or 900 minutes from 10am to 1am. In words, this duration is equal to fifteen hours or nine hundred minutes.
How many hours from
| 2PM to 9PM | 3PM to 9PM | 12AM to 11PM |
| 4AM to 9AM | 7PM to 9PM | 8AM to 4AM |
| 8PM to 5AM | 2PM to 12AM | 10PM to 4PM |
| 7AM to 11AM | 4AM to 7PM | 9PM to 3AM |
| 10PM to 12AM | 7AM to 1AM | 4PM to 8AM |
| 2PM to 10AM | 7AM to 5PM | 8AM to 6AM |
