Oops, it doesn't look like 'title shirt every day' is a national day..

Other days

ride the wind

Ride The Wind Day
self appreciation

Self Appreciation Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
china

China Day
eat what you want

Eat What You Want Day
artists

Artists Day
mean girls

Mean Girls Day
camera

Camera Day
donate your hair

Donate Your Hair Day
me

Me Day