Oops, it doesn't look like 'msm day' is a national day..

Other days

carpenters

Carpenters Day
pick me

Pick Me Day
polyamory

Polyamory Day
hiv awareness

Hiv Awareness Day
lisp

Lisp Day
ormille

Ormille Day
azonto is acceptable

Azonto Is Acceptable Day
bounce

Bounce Day
ruby

Ruby Day
pampering

Pampering Day