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

Other days

offer

Offer Day
first love

First Love Day
my little pony

My Little Pony Day
lisp

Lisp Day
ride the wind

Ride The Wind Day
stress awareness

Stress Awareness Day
hannah

Hannah Day
bounce

Bounce Day
buddy

Buddy Day
tulip

Tulip Day