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

Other days

gum

Gum Day
aloxolt

Aloxolt Day
prosecco

Prosecco Day
bow tie

Bow Tie Day
artists

Artists Day
law

Law Day
lisp

Lisp Day
hoodie

Hoodie Day
boy friend

Boy Friend Day
coffee

Coffee Day