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