Oops, it doesn't look like 'challenge cup day' is a national day..

Other days

appreciate yaself a lil extra

Appreciate Yaself A Lil Extra Day

embarrass your best friend

Embarrass Your Best Friend Day

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day

one

One Day

Emoji Day

reading

Reading Day

coffee

Coffee Day

cat girl

Cat Girl Day

girl friend

Girl Friend Day

book

Book Day