There are total 21 hours or 1260 minutes from 8am to 5am. In words, this duration is equal to twenty-one hours or one thousand two hundred sixty minutes.
How many hours from
| 1AM to 6AM | 11AM to 2PM | 10PM to 8AM |
| 5AM to 2PM | 12PM to 3AM | 8AM to 11PM |
| 1AM to 10PM | 7PM to 5AM | 1AM to 7PM |
| 4AM to 11AM | 10PM to 11AM | 1AM to 7PM |
| 6PM to 6AM | 5PM to 9PM | 2PM to 10AM |
| 8PM to 1AM | 6AM to 4AM | 4AM to 5PM |
