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