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