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
| 5AM to 12AM | 4PM to 2AM | 8AM to 2AM |
| 9PM to 4AM | 5PM to 12AM | 12PM to 8AM |
| 9AM to 10AM | 4AM to 8PM | 1PM to 12AM |
| 7AM to 3PM | 12PM to 7PM | 7AM to 3AM |
| 11PM to 8AM | 8AM to 10AM | 12AM to 3AM |
| 7PM to 5PM | 12AM to 12PM | 1PM to 5AM |
