Oops, it doesn't look like 'science and technology half day' is a national day..

Other days

martini

Martini Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
first love

First Love Day
lash

Lash Day
tell a fairytale

Tell A Fairytale Day
stress awareness

Stress Awareness Day
ruby

Ruby Day
reading

Reading Day
raise awerness of zeus

Raise Awerness Of Zeus Day
frozen yogurt

Frozen Yogurt Day