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