Oops, it doesn't look like 'flag in a ceremony day' is a national day..

Other days

my little pony

My Little Pony Day

Me Day

ponytail

Ponytail Day

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day

artists

Artists Day

bounce

Bounce Day

slime

Slime Day

first love

First Love Day

eat what you want

Eat What You Want Day

ruby

Ruby Day