Oops, it doesn't look like 'flu vaccination programme at westminster flu day' is a national day..

Other days

Unicorn Day

Azonto Is Acceptable Day

Hiv Awareness Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Aloxolt Day

Girl Friend Day

Tell A Fairytale Day

Pick Me Day

Lost Sock Memorial Day

Eat What You Want Day