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