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

Other days

kale

Kale Day
raise awerness of zeus

Raise Awerness Of Zeus Day
offer

Offer Day
gum

Gum Day
lash

Lash Day
hoodie

Hoodie Day
boy friend

Boy Friend Day
nae nae

Nae Nae Day
first love

First Love Day
pumpkin

Pumpkin Day