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

Other days

pampering

Pampering Day
hoodie

Hoodie Day
brow

Brow Day
boy friend

Boy Friend Day
kale

Kale Day
slime

Slime Day
ask out your crush

Ask Out Your Crush Day
unicorn

Unicorn Day
pumpkin

Pumpkin Day
bonang

Bonang Day