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

Other days

aloxolt

Aloxolt Day
frozen yogurt

Frozen Yogurt Day
eat what you want

Eat What You Want Day
boy friend

Boy Friend Day
ponytail

Ponytail Day
me

Me Day
mean girls

Mean Girls Day
self care

Self Care Day
nae nae

Nae Nae Day
hoodie

Hoodie Day