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

Other days

boba

Boba Day
bonang

Bonang Day
slime

Slime Day
hot chocolate

Hot Chocolate Day
boy friend

Boy Friend Day
unicorn

Unicorn Day
ride the wind

Ride The Wind Day
bow tie

Bow Tie Day
tell a fairytale

Tell A Fairytale Day
camera

Camera Day