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