Oops, it doesn't look like 'ncs social action day' is a national day..

Other days

martini

Martini Day
artists

Artists Day
gum

Gum Day
donate your hair

Donate Your Hair Day
bow tie

Bow Tie Day
book

Book Day
lumpy rug

Lumpy Rug Day
first love

First Love Day
carpenters

Carpenters Day
tulip

Tulip Day