Oops, it doesn't look like 'secret life of pets pet day' is a national day..

Other days

cat girl

Cat Girl Day

special education

Special Education Day

pick me

Pick Me Day

blanket fort

Blanket Fort Day

Me Day

my little pony

My Little Pony Day

artists

Artists Day

ponytail

Ponytail Day

nae nae

Nae Nae Day

coffee

Coffee Day