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

Other days

lumpy rug

Lumpy Rug Day
bonang

Bonang Day
nae nae

Nae Nae Day
latina equal pay

Latina Equal Pay Day
self care

Self Care Day
aloxolt

Aloxolt Day
buddy

Buddy Day
tulip

Tulip Day
bow tie

Bow Tie Day
ruby

Ruby Day