Oops, it doesn't look like 'school in kerry saw three sets of twins and a set of triplets arrive for their first day' is a national day..

Other days

Appreciate Yaself A Lil Extra Day

China Day

One Day

Tulip Day

My Little Pony Day

Aloxolt Day

Girl Friend Day

Pumpkin Day

Slime Day

Lumpy Rug Day