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