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

Other days

ruby

Ruby Day
slime

Slime Day
aloxolt

Aloxolt Day
tulip

Tulip Day
boy friend

Boy Friend Day
law

Law Day
get funky

Get Funky Day
bow tie

Bow Tie Day
stress awareness

Stress Awareness Day
hoodie

Hoodie Day