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