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