There are total 19 hours or 1140 minutes from 1am to 8pm. In words, this duration is equal to nineteen hours or one thousand one hundred forty minutes.
How many hours from
| 6AM to 1AM | 9PM to 12PM | 6PM to 5AM |
| 6AM to 12AM | 3PM to 4PM | 1PM to 4PM |
| 2PM to 3AM | 10PM to 3AM | 11AM to 3AM |
| 3AM to 8AM | 10PM to 6PM | 7AM to 11AM |
| 2PM to 6PM | 4PM to 9AM | 11AM to 5PM |
| 12PM to 9PM | 10PM to 12PM | 10AM to 5AM |
