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

Other days

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
hot chocolate

Hot Chocolate Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
aloxolt

Aloxolt Day
brow

Brow Day
stress awareness

Stress Awareness Day
self appreciation

Self Appreciation Day
polyamory

Polyamory Day
offer

Offer Day
gum

Gum Day