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