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

Other days

book

Book Day
gallery

Gallery Day
gum

Gum Day
lost sock memorial

Lost Sock Memorial Day
prosecco

Prosecco Day
brow

Brow Day
law

Law Day
ruby

Ruby Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
slime

Slime Day