Oops, it doesn't look like 'behave like a pirate day' is a national day..

Other days

youth

Youth Day

get funky

Get Funky Day

appreciate yaself a lil extra

Appreciate Yaself A Lil Extra Day

Emoji Day

boba

Boba Day

special education

Special Education Day

self appreciation

Self Appreciation Day

offer

Offer Day

carpenters

Carpenters Day

azonto is acceptable

Azonto Is Acceptable Day