Oops, it doesn't look like 'defence force commemorates international day' is a national day..

Other days

boba

Boba Day
stress awareness

Stress Awareness Day
boy friend

Boy Friend Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
slime

Slime Day
kale

Kale Day
my little pony

My Little Pony Day
tulip

Tulip Day
reading

Reading Day
cuddle up

Cuddle Up Day