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

Other days

china

China Day
ormille

Ormille Day
ruby

Ruby Day
hiv awareness

Hiv Awareness Day
carpenters

Carpenters Day
tulip

Tulip Day
self appreciation

Self Appreciation Day
unicorn

Unicorn Day
coffee

Coffee Day
brow

Brow Day