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