Oops, it doesn't look like 'voice we must shut them up day' is a national day..

Other days

Ride The Wind Day

Lumpy Rug Day

Bow Tie Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Artists Day

Singles Day

Chocolate Milkshake Day

Promposal Day

Embarrass Your Best Friend Day

Pampering Day