I do it myself sometimes. I generally write my dates the US style - mm/dd/yy - when it's only for me. When I'm writing for use by other people here I try to remember to reorder my date to the dd/mm/yy format used in Europe.
So, I have some sympathy for the Irish Examiner, which seems to have a date problem today. Every other article on their web site is dated January 5, 2006. I think all the articles are from today, however.
