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

Other days

bounce

Bounce Day
aloxolt

Aloxolt Day
self appreciation

Self Appreciation Day
pick me

Pick Me Day
ruby

Ruby Day
promposal

Promposal Day
nae nae

Nae Nae Day
gallery

Gallery Day
unicorn

Unicorn Day
artists

Artists Day