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

Other days

bonang

Bonang Day
boy friend

Boy Friend Day
buddy

Buddy Day
tell a fairytale

Tell A Fairytale Day
boba

Boba Day
me

Me Day
mean girls

Mean Girls Day
ask out your crush

Ask Out Your Crush Day
self care

Self Care Day
coffee

Coffee Day