Oops, it doesn't look like 'parks in the same day' is a national day..

Other days

hannah

Hannah Day
hoodie

Hoodie Day
lisp

Lisp Day
healing

Healing Day
brow

Brow Day
stud

Stud Day
promposal

Promposal Day
believe

Believe Day
blanket fort

Blanket Fort Day
self care

Self Care Day