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