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

Other days

gum

Gum Day
nae nae

Nae Nae Day
book

Book Day
comfy

Comfy Day
believe

Believe Day
china

China Day
pick me

Pick Me Day
cat girl

Cat Girl Day
my little pony

My Little Pony Day
healing

Healing Day