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

Other days

nail polish

Nail Polish Day
believe

Believe Day
stress awareness

Stress Awareness Day
get funky

Get Funky Day
comfy

Comfy Day
china

China Day
ask out your crush

Ask Out Your Crush Day
artists

Artists Day
self care

Self Care Day
kale

Kale Day