Oops, it doesn't look like 'championship over a nice dinner and date any day' is a national day..

Other days

coffee

Coffee Day

hiv awareness

Hiv Awareness Day

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day

hannah

Hannah Day

frozen yogurt

Frozen Yogurt Day

bubble bath

Bubble Bath Day

Emoji Day

chocolate milkshake

Chocolate Milkshake Day

gum

Gum Day

cuddle up

Cuddle Up Day