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