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