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