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