Oops, it doesn't look like 'hate mackenzee meyers day' is a national day..

Other days

Tulip Day

Get Funky Day

My Little Pony Day

Self Appreciation Day

Appreciate Yaself A Lil Extra Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Carpenters Day

Ormille Day

Slime Day

Girl Friend Day