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
| 3PM to 1AM | 10AM to 4PM | 12AM to 10AM |
| 9AM to 4PM | 5AM to 2PM | 12PM to 7AM |
| 7AM to 4AM | 11PM to 8PM | 5AM to 10PM |
| 11AM to 3AM | 11PM to 7AM | 7AM to 1AM |
| 7AM to 7PM | 4AM to 9AM | 8AM to 6AM |
| 4AM to 2PM | 1PM to 5AM | 6AM to 5PM |
