Oops, it doesn't look like 'division on day' is a national day..

Other days

tulip

Tulip Day
boba

Boba Day
pumpkin

Pumpkin Day
offer

Offer Day
ask out your crush

Ask Out Your Crush Day
mean girls

Mean Girls Day
pick me

Pick Me Day
boyfriend

Boyfriend Day
kiss a ginger

Kiss A Ginger Day
gum

Gum Day