Lot of talk of numerics only. The problem there is knowing what format the information is in since clearly there are 3 possibilities. Without context and during certain parts of the month you're hosed. Best to remove ambiguity and go with the alpha numeric format.
Any date format can be unambiguous as long as it's the one that everyone agrees on, and all date formats will be ambiguous as long as we have several in use.
I kinda gave up, nowadays when i write a date to someone i specify the date format. Like i will send "01/05/2024 (DD/MM/YYYY)" because it's the only way to be sure
The second reason why yyyy-MM-dd is the correct way to write days (beside being sortable by default) is because even Americans doesn't have any similar format that it can be confused with.
I learned this in my first half year as a programmer I think, somewhere well over a decade back and so far it seems that guy was right.
As monsterous as it is yyyy-mm-dd could also be misconstrued by said unfortunate Americans as yyyy-dd-mm because...well...yeah. As noted elsewhere this dd mmm yyyy format also works nicely in written and verbal communication as 12th of august where no one ever is going to write or speak to each other twenty twenty three august twelfth. So again, more universal and less ambiguous.
As monstrous as it is yyyy-mm-dd could also be misconstrued by said unfortunate Americans as yyyy-dd-mm because...well...yeah. As noted elsewhere this dd mmm yyyy format also works nicely in written and verbal communication as 12th of august where no one ever is going to write or speak to each other twenty twenty three august twelfth. So again, more universal and less ambiguous.
Problem is that languages get in the way. Some are pretty similar like 15 ago (Spanish) being 15 Aug (English), but 1 ene (Spanish) aren't that similar to 1 Jan (English).
And for the usual "But English is used everwhere! I live in X!" crowd: NO, it isn't. Not everything you see as an "expat" is the same as the actual locals with their own language.