Oops, it doesn't look like 'move up a weight class day' is a national day..

Other days

coffee

Coffee Day
cat girl

Cat Girl Day
singles

Singles Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
law

Law Day
mean girls

Mean Girls Day
bow tie

Bow Tie Day
stress awareness

Stress Awareness Day
boy friend

Boy Friend Day
self care

Self Care Day