[Ma8ee]

Is that date format used anywhere outside the US? We have always used YYYY-MM-DD. Which is very nice, if for nothing you can use a single string sort if for whatever reason need to sort them.

[ant6n]

In my world, there are two date formats: yyyy-mm-dd and dd.mm.yyyy.

Anything involving a slash is asking for trouble.

[tzs]

https://en.wikipedia.org/wiki/Date_format_by_country