12h time format only?

yyyy-mm-dd is the only date format that is natural/logical, for example, the only one which is sortable
I needed data from my government's website. A list of dates and amounts. I'm clicking and it makes no sense! Finally I clicked that the web-form was sorting dates alphabetically. April, August, December....... :xeye:

I got a blood pressure tester. By that fact you may suspect it has been many years since I was born. The tester datalink wanted my birthday. It defaulted to "today"... they think I was born yesterday? I could change the date.... BY MONTHS! (Worse than those drop-lists. Awkward even for my cars.) I can't even count how many months I am. Way over 700 clicks?? No wonder I have high blood pressure. (BTW: OMRON. Normally an OK if high-price brand but this product is pupping the pooch.)