Oops, it doesn't look like 'send a what day' is a national day..

Other days

china

China Day
youth

Youth Day
stress awareness

Stress Awareness Day
boyfriend

Boyfriend Day
first love

First Love Day
ormille

Ormille Day
kiss a ginger

Kiss A Ginger Day
boy friend

Boy Friend Day
gum

Gum Day
brow

Brow Day