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