Oops, it doesn't look like 'leader in testing on a day' is a national day..

Other days

get funky

Get Funky Day
tulip

Tulip Day
ormille

Ormille Day
boba

Boba Day
latina equal pay

Latina Equal Pay Day
camera

Camera Day
lisp

Lisp Day
gum

Gum Day
ruby

Ruby Day
self care

Self Care Day