Oops, it doesn't look like 'Blood Donor Week And You Can Help By Taking Just An Hour From Your day' is a national day..

Other days

Kale Day

Polyamory Day

Eat What You Want Day

Nail Polish Day

Camera Day

Prosecco Day

Cuddle Up Day

Ride The Wind Day

Azonto Is Acceptable Day

Tell Ur Crush You Like Them Day