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