Oops, it doesn't look like 'lock your car doors day' is a national day..

Other days

lisp

Lisp Day
one

One Day
brow

Brow Day
aloxolt

Aloxolt Day
hoodie

Hoodie Day
ruby

Ruby Day
ask out your crush

Ask Out Your Crush Day
my little pony

My Little Pony Day
bonang

Bonang Day
youth

Youth Day