There are total 4 hours or 240 minutes from 3am to 7am. In words, this duration is equal to four hours or two hundred forty minutes.
How many hours from
| 12AM to 11PM | 8AM to 11PM | 9PM to 12AM |
| 4AM to 9AM | 3AM to 1AM | 6PM to 2AM |
| 2PM to 4PM | 7AM to 2PM | 9PM to 9AM |
| 9AM to 3PM | 2AM to 3PM | 2PM to 6AM |
| 3AM to 8PM | 7AM to 1PM | 3AM to 10PM |
| 10AM to 8PM | 11PM to 4AM | 9PM to 12PM |
