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

Other days

law

Law Day
kiss a brunette

Kiss A Brunette Day
cat girl

Cat Girl Day
bow tie

Bow Tie Day
gum

Gum Day
bubble bath

Bubble Bath Day
get funky

Get Funky Day
singles

Singles Day
lost sock memorial

Lost Sock Memorial Day
offer

Offer Day