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