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