Oops, it doesn't look like 'bring back excessive party promo day' is a national day..

Other days

ormille

Ormille Day
stress awareness

Stress Awareness Day
prosecco

Prosecco Day
frozen yogurt

Frozen Yogurt Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
nae nae

Nae Nae Day
slime

Slime Day
appreciate yaself a lil extra

Appreciate Yaself A Lil Extra Day
artists

Artists Day
eat what you want

Eat What You Want Day