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