Oops, it doesn't look like 'claim it is not a free and fair election because twitter had a lengthy outage on the last day' is a national day..

Other days

Kale Day

Girl Friend Day

Hannah Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Carpenters Day

Pumpkin Day

Prosecco Day

Latina Equal Pay Day

Youth Day

Slime Day