Oops, it doesn't look like 'celebrations of taxpayers appreciation day' is a national day..

Other days

frozen yogurt

Frozen Yogurt Day
believe

Believe Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
boba

Boba Day
lost sock memorial

Lost Sock Memorial Day
self appreciation

Self Appreciation Day
blanket fort

Blanket Fort Day
me

Me Day
ormille

Ormille Day
donate your hair

Donate Your Hair Day