Oops, it doesn't look like 'pearl harbor memorial day' is a national day..

Other days

gum

Gum Day
believe

Believe Day
buddy

Buddy Day
bow tie

Bow Tie Day
chocolate milkshake

Chocolate Milkshake Day
hiv awareness

Hiv Awareness Day
bounce

Bounce Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
ruby

Ruby Day
special education

Special Education Day