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