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

Other days

self appreciation

Self Appreciation Day
blanket fort

Blanket Fort Day
polyamory

Polyamory Day
pumpkin

Pumpkin Day
azonto is acceptable

Azonto Is Acceptable Day
offer

Offer Day
promposal

Promposal Day
boyfriend

Boyfriend Day
self care

Self Care Day
buddy

Buddy Day