Good point. In the spirit of https://xkcd.com/927/ I propose we add "european programmer's day", celebrated on 5.12 (Dag Sinterklaasje)?
Let's all meet here again. I'll bring a bottle or two of Pastis 512 (unfortunately adjusted with magic marker instead of a hex editor) and we can blast Dylan Beattie and the Linebreakers:
[1] https://en.wikipedia.org/wiki/ISO_8601