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