No, only German date-format 
dd.mm.yy(yy) mostly as clearly as yy(yy)-mm-dd
We cant understand how anyone could ever invent formats like mm-dd-yy with completely mixed notation!
Yes they are the same who still uses non stadardized units as gallon, feet, pound, inch …
https://en.wikipedia.org/wiki/Date_format_by_country
As you can see most used (by population) format in world in cyan color. Green colour is second most and allows both DMY and YMD, but how to handle BC?
Of course for (file) sorting the one and only format is YMD and to be more clearly exactly yyyy-mm-dd.
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