Oops, it doesn't look like 'flag costume for his pet dog on republic day' is a national day..

Other days

Comfy Day

Me Day

Donate Your Hair Day

Special Education Day

Tulip Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Brow Day

Prescription Drug Take Back Day

Appreciate Yaself A Lil Extra Day

Fiancee Day