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