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

Other days

stud

Stud Day
hoodie

Hoodie Day
ask out your crush

Ask Out Your Crush Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
blanket fort

Blanket Fort Day
girl friend

Girl Friend Day
hot chocolate

Hot Chocolate Day
self appreciation

Self Appreciation Day
ormille

Ormille Day
tell a fairytale

Tell A Fairytale Day