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

Other days

get funky

Get Funky Day
pumpkin

Pumpkin Day
ride the wind

Ride The Wind Day
china

China Day
blanket fort

Blanket Fort Day
gallery

Gallery Day
self care

Self Care Day
donate your hair

Donate Your Hair Day
ormille

Ormille Day
bonang

Bonang Day