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