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