Oops, it doesn't look like 'summits on the air day' is a national day..

Other days

youth

Youth Day
bounce

Bounce Day
mean girls

Mean Girls Day
lumpy rug

Lumpy Rug Day
believe

Believe Day
pick me

Pick Me Day
buddy

Buddy Day
china

China Day
get funky

Get Funky Day
slime

Slime Day