There are total 20 hours or 1200 minutes from 7pm to 3pm. In words, this duration is equal to twenty hours or one thousand two hundred minutes.
How many hours from
| 3AM to 3PM | 1AM to 3PM | 10AM to 9AM |
| 3AM to 8PM | 10PM to 3AM | 12AM to 3PM |
| 2PM to 4PM | 11PM to 3AM | 12AM to 2PM |
| 1PM to 8PM | 9AM to 8AM | 1AM to 10PM |
| 6PM to 8AM | 11AM to 2PM | 6PM to 6AM |
| 10AM to 2PM | 12PM to 8PM | 5PM to 12AM |