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