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

Other days

ruby

Ruby Day

unicorn

Unicorn Day

buddy

Buddy Day

camera

Camera Day

kale

Kale Day

eat what you want

Eat What You Want Day

carpenters

Carpenters Day

mean girls

Mean Girls Day

one

One Day

my little pony

My Little Pony Day