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