> Why does it differ between English speaking countries, then?
Because they speak differently? I would expect "November 17, 2022" spoken as "November seventeenth, twenty twenty-two" vs. "17 Nov 2022" as "seventeenth of November, twenty twenty-two". Wikipedia [1] does say that the latter DMY form recently arose possibly in order to resolve ambiguities and the spoken form is less common, but I expect it to be more frequently spoken after enough years of usage.
Because they speak differently? I would expect "November 17, 2022" spoken as "November seventeenth, twenty twenty-two" vs. "17 Nov 2022" as "seventeenth of November, twenty twenty-two". Wikipedia [1] does say that the latter DMY form recently arose possibly in order to resolve ambiguities and the spoken form is less common, but I expect it to be more frequently spoken after enough years of usage.
[1] https://en.wikipedia.org/wiki/Date_and_time_notation_in_the_...