Oops, it doesn't look like 'girlfrnd day' is a national day..

Other days

youth

Youth Day
artists

Artists Day
lumpy rug

Lumpy Rug Day
mean girls

Mean Girls Day
hannah

Hannah Day
hoodie

Hoodie Day
tulip

Tulip Day
bounce

Bounce Day
azonto is acceptable

Azonto Is Acceptable Day
self care

Self Care Day