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