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

Other days

carpenters

Carpenters Day
youth

Youth Day
blanket fort

Blanket Fort Day
kiss a ginger

Kiss A Ginger Day
artists

Artists Day
aloxolt

Aloxolt Day
bow tie

Bow Tie Day
nae nae

Nae Nae Day
self appreciation

Self Appreciation Day
self care

Self Care Day