There are total 4 hours or 240 minutes from 9am to 1pm. In words, this duration is equal to four hours or two hundred forty minutes.
How many hours from
| 6AM to 12PM | 5PM to 8PM | 3PM to 4AM |
| 6PM to 4AM | 3PM to 1AM | 10AM to 3AM |
| 12AM to 10PM | 12PM to 11PM | 7PM to 1AM |
| 8PM to 12PM | 7PM to 2PM | 10AM to 10PM |
| 7PM to 6AM | 6PM to 8AM | 9AM to 10AM |
| 12AM to 12PM | 3PM to 10AM | 3PM to 8AM |
