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