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

Other days

prosecco

Prosecco Day
coffee

Coffee Day
buddy

Buddy Day
boy friend

Boy Friend Day
nae nae

Nae Nae Day
latina equal pay

Latina Equal Pay Day
cursing

Cursing Day
my little pony

My Little Pony Day
slime

Slime Day
hoodie

Hoodie Day