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