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

Other days

one

One Day
tulip

Tulip Day
self care

Self Care Day
hoodie

Hoodie Day
tell a fairytale

Tell A Fairytale Day
ride the wind

Ride The Wind Day
first love

First Love Day
blanket fort

Blanket Fort Day
carpenters

Carpenters Day
law

Law Day