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

Other days

comfy

Comfy Day
ruby

Ruby Day
artists

Artists Day
self appreciation

Self Appreciation Day
china

China Day
get funky

Get Funky Day
law

Law Day
ormille

Ormille Day
promposal

Promposal Day
tulip

Tulip Day