There are total 4 hours or 240 minutes from 8am to 12pm. In words, this duration is equal to four hours or two hundred forty minutes.
How many hours from
| 8AM to 1PM | 4PM to 11AM | 6AM to 10PM |
| 6PM to 12AM | 12AM to 6PM | 7AM to 4AM |
| 3PM to 9AM | 9PM to 4AM | 1AM to 10AM |
| 4AM to 9AM | 11PM to 12AM | 12AM to 4PM |
| 7PM to 1PM | 9PM to 5PM | 4AM to 7PM |
| 8PM to 3PM | 3PM to 4PM | 6PM to 1PM |
