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