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

Other days

ruby

Ruby Day
aloxolt

Aloxolt Day
believe

Believe Day
kale

Kale Day
coffee

Coffee Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
blanket fort

Blanket Fort Day
buddy

Buddy Day
nail polish

Nail Polish Day
raise awerness of zeus

Raise Awerness Of Zeus Day