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

Other days

promposal

Promposal Day
kiss a brunette

Kiss A Brunette Day
law

Law Day
kale

Kale Day
ruby

Ruby Day
lisp

Lisp Day
blanket fort

Blanket Fort Day
ormille

Ormille Day
buddy

Buddy Day
aloxolt

Aloxolt Day