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