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

Other days

bonang

Bonang Day
pampering

Pampering Day
cuddle up

Cuddle Up Day
lost sock memorial

Lost Sock Memorial Day
kiss a ginger

Kiss A Ginger Day
slime

Slime Day
hiv awareness

Hiv Awareness Day
hoodie

Hoodie Day
buddy

Buddy Day
coffee

Coffee Day