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

Other days

gallery

Gallery Day
self appreciation

Self Appreciation Day
hoodie

Hoodie Day
boy friend

Boy Friend Day
polyamory

Polyamory Day
believe

Believe Day
azonto is acceptable

Azonto Is Acceptable Day
bounce

Bounce Day
self care

Self Care Day
tell a fairytale

Tell A Fairytale Day