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

Other days

cat girl

Cat Girl Day
prosecco

Prosecco Day
lash

Lash Day
hiv awareness

Hiv Awareness Day
comfy

Comfy Day
slime

Slime Day
blanket fort

Blanket Fort Day
china

China Day
self care

Self Care Day
stud

Stud Day