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31DEC2022. Leaves no confusion lol >

Is that the model number of some kind of appliance? >

It's the way they write the date in the US Military. >

Don’t know about the military but in the aerospace industry, this is how we put the dates in front of our signatures, when signing drawings and documents >

r/iso8601 >

I will always be a proponent of month/day/year because if someone asks my birthday, that’s how I would say it. 
I wouldn’t say “18th of April, 1983.”
I wouldn’t say “1985, December 3rd.”
I’d say “September 6th, 1989.”
(None of those are actually my birthday) >

Year should go last because it changes the least often. >

Day/month/year makes the most sense in my mind. >

100# agree once. Multiple Decembers are involved it's obvious >

This is for file names and sorting only for me. For most other stuff I use DD/MM/YY(YY). The most relevant parts should come first. For most of my notes I jzst leave out the year completely, because they are in a book / folder with the year. >

This isn't really that unpopular. There are at least 3 countries that use this format. >

Out of 195. I wouldn't exactly call that popular. >

I'd call a system used by about 1.5 billion pretty popular >

I'm ok with either MM/DD/YYYY or DD/MM/YYYY. The later of the two makes more sense, but I'm fine with either so long as it's standardized everywhere. >

I need to know the day more than I need to know the year or the month. So day should be first. >

The best way to make sure that the date is properly recognized is to spell out the month. 2022 December  31st.  31st December 2022. December 31,2022. All will be recognized as the accurate recording of the date . Stop being lazy and simply spell the name of the month. >

M/d/y>