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