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

Other days

gum

Gum Day
lash

Lash Day
slime

Slime Day
chocolate milkshake

Chocolate Milkshake Day
lisp

Lisp Day
one

One Day
bonang

Bonang Day
kiss a ginger

Kiss A Ginger Day
donate your hair

Donate Your Hair Day
bow tie

Bow Tie Day