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

Other days

promposal

Promposal Day
gum

Gum Day
brow

Brow Day
boba

Boba Day
hannah

Hannah Day
martini

Martini Day
self appreciation

Self Appreciation Day
hiv awareness

Hiv Awareness Day
youth

Youth Day
tell a fairytale

Tell A Fairytale Day