I see the problem: I read the date in American format (mm/dd/yyyy) and it's dd/mm/yyyy. That's a very confusing date format, yyyy/mm/dd is better as an international format.
That's yyyy-mm-dd. yyyy/mm/dd is ambiguous because the slash-separator is shared across all conflicting formats. Dashes are pretty much always ISO compliant formats. (Yes, it's a small difference, but it helps)
I agree, and I have to restrain myself not to use YYYY-MM-DD when signing official U.S. government forms. That said, I understand why year-first dates are cumbersome from an everyday perspective, especially in contexts where only day/month is needed.
That's yyyy-mm-dd. yyyy/mm/dd is ambiguous because the slash-separator is shared across all conflicting formats. Dashes are pretty much always ISO compliant formats. (Yes, it's a small difference, but it helps)