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