Oops, it doesn't look like 'voluntary blood donation voluntary blood donation day' is a national day..

Other days

frozen yogurt

Frozen Yogurt Day
nail polish

Nail Polish Day
camera

Camera Day
hoodie

Hoodie Day
ask out your crush

Ask Out Your Crush Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
self care

Self Care Day
bounce

Bounce Day
coffee

Coffee Day
cuddle up

Cuddle Up Day