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

Other days

me

Me Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
stress awareness

Stress Awareness Day
kiss a ginger

Kiss A Ginger Day
believe

Believe Day
hoodie

Hoodie Day
lost sock memorial

Lost Sock Memorial Day
tell a fairytale

Tell A Fairytale Day
latina equal pay

Latina Equal Pay Day
pumpkin

Pumpkin Day