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

Other days

boba

Boba Day
bow tie

Bow Tie Day
self appreciation

Self Appreciation Day
hiv awareness

Hiv Awareness Day
youth

Youth Day
ruby

Ruby Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
prosecco

Prosecco Day
special education

Special Education Day
polyamory

Polyamory Day