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