Oops, it doesn't look like 'shut the heck up day' is a national day..

Other days

carpenters

Carpenters Day
coffee

Coffee Day
kale

Kale Day
raise awerness of zeus

Raise Awerness Of Zeus Day
stress awareness

Stress Awareness Day
chocolate milkshake

Chocolate Milkshake Day
bow tie

Bow Tie Day
reading

Reading Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
healing

Healing Day