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

Other days

blanket fort

Blanket Fort Day
prescription drug take back

Prescription Drug Take Back Day
azonto is acceptable

Azonto Is Acceptable Day
bow tie

Bow Tie Day
stress awareness

Stress Awareness Day
healing

Healing Day
boba

Boba Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
cursing

Cursing Day
artists

Artists Day