There are total 5 hours or 300 minutes from 7am to 12pm. In words, this duration is equal to five hours or three hundred minutes.
How many hours from
| 8PM to 7PM | 10PM to 12PM | 10PM to 5PM |
| 5PM to 9PM | 4PM to 7PM | 12PM to 11PM |
| 4PM to 6AM | 8PM to 11PM | 6AM to 12PM |
| 3PM to 10AM | 12AM to 3AM | 4PM to 3PM |
| 12AM to 3PM | 9PM to 4PM | 12AM to 1AM |
| 11AM to 4PM | 11PM to 6PM | 9AM to 1PM |