Oops, it doesn't look like 'eat outside trail mix day' is a national day..

Other days

buddy

Buddy Day
china

China Day
promposal

Promposal Day
self care

Self Care Day
reading

Reading Day
self appreciation

Self Appreciation Day
azonto is acceptable

Azonto Is Acceptable Day
singles

Singles Day
special education

Special Education Day
tell a fairytale

Tell A Fairytale Day