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

Other days

stress awareness

Stress Awareness Day

ponytail

Ponytail Day

slime

Slime Day

singles

Singles Day

first love

First Love Day

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day

gum

Gum Day

boyfriend

Boyfriend Day

nail polish

Nail Polish Day

ask out your crush

Ask Out Your Crush Day