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