Oops, it doesn't look like 'service of thanksgiving takes place in cardiff as weekend of victory in europe day' is a national day..

Other days

Singles Day

Prescription Drug Take Back Day

Bubble Bath Day

Coffee Day

Tulip Day

Kiss A Brunette Day

Blanket Fort Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Get Funky Day

Ask Out Your Crush Day