Oops, it doesn't look like 'grid developed a fault just a day' is a national day..

Other days

boyfriend

Boyfriend Day
stress awareness

Stress Awareness Day
my little pony

My Little Pony Day
bounce

Bounce Day
me

Me Day
fiancee

Fiancee Day
azonto is acceptable

Azonto Is Acceptable Day
reading

Reading Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
chocolate milkshake

Chocolate Milkshake Day