A mixed-style date means that the date is written using a combination of numeric and text formats. For example, if today is June 1, 2021, the mixed-style date could be written as "06/01/21" or "01-Jun-21".
The numbers in the date represent the month, day, and year, and are separated by slashes or dashes. Sometimes, the month is written using letters like Jan, Feb, Mar, etc., instead of numbers. This is the text format part of the mixed-style date.
People use mixed-style dates because it can make it easier to read the date and understand when an event or task is scheduled. It's important to know how to read both numeric and text formats to understand mixed-style dates.