Oops, it doesn't look like 'athlete clear piss day' is a national day..

Other days

promposal

Promposal Day
brow

Brow Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
azonto is acceptable

Azonto Is Acceptable Day
emoji

Emoji Day
blanket fort

Blanket Fort Day
youth

Youth Day
ask out your crush

Ask Out Your Crush Day
appreciate yaself a lil extra

Appreciate Yaself A Lil Extra Day
camera

Camera Day