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

Other days

promposal

Promposal Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
carpenters

Carpenters Day
boba

Boba Day
frozen yogurt

Frozen Yogurt Day
azonto is acceptable

Azonto Is Acceptable Day
me

Me Day
tulip

Tulip Day
self appreciation

Self Appreciation Day
tell a fairytale

Tell A Fairytale Day