Oops, it doesn't look like 'not reply day' is a national day..

Other days

me

Me Day
boy friend

Boy Friend Day
prescription drug take back

Prescription Drug Take Back Day
eat what you want

Eat What You Want Day
comfy

Comfy Day
bow tie

Bow Tie Day
polyamory

Polyamory Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
hiv awareness

Hiv Awareness Day
china

China Day