There are total 20 hours or 1200 minutes from 8am to 4am. In words, this duration is equal to twenty hours or one thousand two hundred minutes.
How many hours from
| 10PM to 3PM | 9AM to 8AM | 10PM to 11AM |
| 7AM to 3AM | 5AM to 12PM | 10AM to 7AM |
| 6PM to 3AM | 8AM to 7AM | 6PM to 4PM |
| 4PM to 1PM | 2PM to 10AM | 10PM to 1AM |
| 1AM to 8AM | 1AM to 1PM | 5AM to 4AM |
| 4AM to 1PM | 8AM to 1AM | 3AM to 10AM |
