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