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

Other days

self care

Self Care Day
nail polish

Nail Polish Day
martini

Martini Day
first love

First Love Day
boba

Boba Day
buddy

Buddy Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
hiv awareness

Hiv Awareness Day
nae nae

Nae Nae Day
embarrass your best friend

Embarrass Your Best Friend Day