Oops, it doesn't look like 'ploughing championships to take place following cancellation of day' is a national day..

Other days

Get Funky Day

Ponytail Day

Coffee Day

Latina Equal Pay Day

China Day

Lisp Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Appreciate Yaself A Lil Extra Day

Chocolate Milkshake Day

Eat What You Want Day