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

Other days

ask out your crush

Ask Out Your Crush Day
gum

Gum Day
blanket fort

Blanket Fort Day
self care

Self Care Day
youth

Youth Day
tulip

Tulip Day
brow

Brow Day
self appreciation

Self Appreciation Day
martini

Martini Day
ride the wind

Ride The Wind Day