Oops, it doesn't look like 'leaders have used global handwashing day' is a national day..

Other days

lisp

Lisp Day
unicorn

Unicorn Day
stress awareness

Stress Awareness Day
donate your hair

Donate Your Hair Day
first love

First Love Day
law

Law Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
latina equal pay

Latina Equal Pay Day
bounce

Bounce Day
my little pony

My Little Pony Day