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

Other days

boba

Boba Day
self care

Self Care Day
boyfriend

Boyfriend Day
youth

Youth Day
ormille

Ormille Day
boy friend

Boy Friend Day
lisp

Lisp Day
donate your hair

Donate Your Hair Day
bounce

Bounce Day
prosecco

Prosecco Day