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

Other days

stud

Stud Day
stress awareness

Stress Awareness Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
special education

Special Education Day
bow tie

Bow Tie Day
one

One Day
bonang

Bonang Day
raise awerness of zeus

Raise Awerness Of Zeus Day
slime

Slime Day
ride the wind

Ride The Wind Day