I started using 8601 without even thinking about it for one simple reason. Alphabetical sorting just works with YYYYmmdd

So for example, log20220804.txt

https://xkcd.com/1179/

At the very least, use four digit years, not 22 for 2022.

> ISO 8601 was published on 06/05/88 and most recently amended on 12/01/04.

I've been using that format too for the same reason, without knowing about 8601. Day/Month/Year is great for a person (I'm in Aus) since we, as human beings, intrinsically know what year it is, and probably know what month it is if we haven't been on a bender. But string sorting is so much easier using yyyyMMdd format.

yyyymmdd is incorrect, as pointed out explicitly in the xkcd you linked.

The format is yyyy-mm-dd.