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

Other days

boyfriend

Boyfriend Day
bounce

Bounce Day
hoodie

Hoodie Day
self care

Self Care Day
slime

Slime Day
hiv awareness

Hiv Awareness Day
promposal

Promposal Day
special education

Special Education Day
boy friend

Boy Friend Day
bonang

Bonang Day