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