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