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