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

Other days

self care

Self Care Day
comfy

Comfy Day
hoodie

Hoodie Day
kale

Kale Day
pick me

Pick Me Day
stud

Stud Day
boba

Boba Day
boy friend

Boy Friend Day
bubble bath

Bubble Bath Day
bonang

Bonang Day