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