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

Other days

gum

Gum Day
aloxolt

Aloxolt Day
comfy

Comfy Day
coffee

Coffee Day
kiss a brunette

Kiss A Brunette Day
lost sock memorial

Lost Sock Memorial Day
bubble bath

Bubble Bath Day
self appreciation

Self Appreciation Day
artists

Artists Day
self care

Self Care Day