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