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

Other days

self appreciation

Self Appreciation Day
blanket fort

Blanket Fort Day
pampering

Pampering Day
kale

Kale Day
hiv awareness

Hiv Awareness Day
prosecco

Prosecco Day
artists

Artists Day
ruby

Ruby Day
unicorn

Unicorn Day
stud

Stud Day