https://en.wikipedia.org/wiki/List_of_LGBTQ_awareness_periods
I don't know if this list is complete, I just skimmed over it, but I've got a lot of them in my calendar.

I also have Autism Pride Day and Self-injury Awareness Day. And Chester Bennington's Birthday and deathday cuz I love him.

I added all the days for that tovmy calendar in August.

Agreed. I just didn't know if the DIN system is a thing outside of Germany because (I'm assuming, I'm not really sure rn) it's an institutional thing here.

And you use the same system as we do?

What...?
Also, is A4 a thing outside of Germany? Or are you from Germany?