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

Other days

boyfriend

Boyfriend Day

cuddle up

Cuddle Up Day

hoodie

Hoodie Day

pick me

Pick Me Day

youth

Youth Day

kale

Kale Day

chocolate milkshake

Chocolate Milkshake Day

azonto is acceptable

Azonto Is Acceptable Day

kiss a ginger

Kiss A Ginger Day

nail polish

Nail Polish Day