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