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

Other days

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
stress awareness

Stress Awareness Day
gum

Gum Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
self appreciation

Self Appreciation Day
ask out your crush

Ask Out Your Crush Day
chocolate milkshake

Chocolate Milkshake Day
prosecco

Prosecco Day
azonto is acceptable

Azonto Is Acceptable Day
hiv awareness

Hiv Awareness Day