They are not universally palindromic. For example, 2030-03-02 (yyyy-mm-dd) when written as 02-03-2030 (dd-mm-yyyy) is not a palindrome. All dates in the list

They are not universally palindromic. For example, 2030-03-02 (yyyy-mm-dd) when written as 02-03-2030 (dd-mm-yyyy) is not a palindrome. All dates in the list I have provided are universally palandromic, i.e., they are palindromes irrespective of the endianness (big, little, or middle) used to represent them.