Oops, it doesn't look like 'murder your siblings day' is a national day..

Other days

Azonto Is Acceptable Day

Appreciate Yaself A Lil Extra Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Ride The Wind Day

Chocolate Milkshake Day

Ormille Day

Hannah Day

Self Care Day

Frozen Yogurt Day

Ask Out Your Crush Day