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

Other days

law

Law Day
bow tie

Bow Tie Day
reading

Reading Day
youth

Youth Day
stud

Stud Day
eat what you want

Eat What You Want Day
pampering

Pampering Day
prosecco

Prosecco Day
singles

Singles Day
gum

Gum Day