Oops, it doesn't look like 'restaurant chains are open in some capacity day' is a national day..

Other days

Frozen Yogurt Day

My Little Pony Day

Boba Day

Kale Day

Healing Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Promposal Day

Law Day

Embarrass Your Best Friend Day

Chocolate Milkshake Day