@dashv there was also the possibility that you were trying to tune in your AM Radio…
It is almost Beer O’Clock on this side of the pond.
It does not surprise me that it is a Brit in that original Discourse article. It is not just Discourse attempting to ignore the rest of the world. Pesky Microsoft keeps trying to break our UK computers with Win10 upgrades. Every six months it would “identify” we were using the English Language and proceed to ignore all our pre-chosen options and break the keyboard layout and all the dates by swapping to English (US). The last couple of updates seem to have FINALLY learnt to leave this setting alone!
See also various annoyed Australians, Kiwis, Canada and many other English speaking countries. I notice that Hawk in the quoted thread is also a Kiwi with the same issues.
BTW - where is the pop-up coming from when I hover over the “discourse meta - 10 Dec 18” link? I notice that is a butchered time stamp of " 09:18PM 10 December 2018 "
At least this is something Wikipedia gets correct.
Even better - a little map which shows all the other countries that share date formats