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