Oops, it doesn't look like 'dress like blake shelton day' is a national day..

Other days

cursing

Cursing Day

carpenters

Carpenters Day

self care

Self Care Day

Emoji Day

pick me

Pick Me Day

stress awareness

Stress Awareness Day

comfy

Comfy Day

kale

Kale Day

ruby

Ruby Day

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day