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

Other days

kiss a ginger

Kiss A Ginger Day
lumpy rug

Lumpy Rug Day
fiancee

Fiancee Day
hiv awareness

Hiv Awareness Day
self appreciation

Self Appreciation Day
one

One Day
carpenters

Carpenters Day
cuddle up

Cuddle Up Day
camera

Camera Day
bounce

Bounce Day