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