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

Other days

Emoji Day

Prescription Drug Take Back Day

Tell Ur Crush You Like Them Day

Latina Equal Pay Day

Lost Sock Memorial Day

Ask Out Your Crush Day

Reading Day

Promposal Day

Polyamory Day

Pumpkin Day