Oops, it doesn't look like 'flag at red fort on republic day' is a national day..

Other days

kale

Kale Day
brow

Brow Day
china

China Day
hoodie

Hoodie Day
blanket fort

Blanket Fort Day
ruby

Ruby Day
kiss a ginger

Kiss A Ginger Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
tell a fairytale

Tell A Fairytale Day
stress awareness

Stress Awareness Day