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

Other days

bow tie

Bow Tie Day
tulip

Tulip Day
hiv awareness

Hiv Awareness Day
slime

Slime Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
buddy

Buddy Day
reading

Reading Day
lost sock memorial

Lost Sock Memorial Day
azonto is acceptable

Azonto Is Acceptable Day
singles

Singles Day