There are total 20 hours or 1200 minutes from 12am to 8pm. In words, this duration is equal to twenty hours or one thousand two hundred minutes.
How many hours from
| 8AM to 4PM | 10AM to 3PM | 2PM to 8PM |
| 8AM to 1PM | 5PM to 1PM | 8AM to 1PM |
| 10PM to 1AM | 4AM to 8PM | 9AM to 4PM |
| 10PM to 6PM | 4AM to 7PM | 7PM to 5PM |
| 7AM to 7PM | 2AM to 7AM | 7AM to 1PM |
| 10AM to 1AM | 3PM to 10AM | 12PM to 10AM |
