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

Other days

comfy

Comfy Day
my little pony

My Little Pony Day
law

Law Day
ask out your crush

Ask Out Your Crush Day
ruby

Ruby Day
self care

Self Care Day
me

Me Day
lost sock memorial

Lost Sock Memorial Day
youth

Youth Day
lisp

Lisp Day