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

Other days

bounce

Bounce Day
self appreciation

Self Appreciation Day
one

One Day
polyamory

Polyamory Day
cuddle up

Cuddle Up Day
lisp

Lisp Day
singles

Singles Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
donate your hair

Donate Your Hair Day
reading

Reading Day