There are total 7 hours or 420 minutes from 1am to 8am. In words, this duration is equal to seven hours or four hundred twenty minutes.
How many hours from
| 2AM to 8PM | 2PM to 6AM | 1AM to 12AM |
| 9AM to 2AM | 5PM to 10AM | 2AM to 1AM |
| 10PM to 2PM | 4AM to 2AM | 8PM to 3AM |
| 2PM to 4AM | 12AM to 1AM | 5AM to 5PM |
| 8PM to 2AM | 12PM to 2AM | 10PM to 9AM |
| 8AM to 6AM | 3AM to 5PM | 11PM to 5AM |
