Oops, it doesn't look like 'ha ha holiday ha ha holiday heeeeeeeeeeeee day' is a national day..

Other days

stud

Stud Day
comfy

Comfy Day
emoji

Emoji Day
boba

Boba Day
bow tie

Bow Tie Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
artists

Artists Day
eat what you want

Eat What You Want Day
ask out your crush

Ask Out Your Crush Day
me

Me Day