Oops, it doesn't look like 'service to mark vj service is to be held in cardiff as part of final victory in japan day' is a national day..

Other days

Chocolate Milkshake Day

Tell Ur Crush You Like Them Day

Pick Me Day

Slime Day

Girl Friend Day

Prosecco Day

Emoji Day

Lumpy Rug Day

Frozen Yogurt Day

Coffee Day