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