Oops, it doesn't look like 'public library open day' is a national day..

Other days

pumpkin

Pumpkin Day

boy friend

Boy Friend Day

prosecco

Prosecco Day

singles

Singles Day

stress awareness

Stress Awareness Day

hiv awareness

Hiv Awareness Day

book

Book Day

Emoji Day

lost sock memorial

Lost Sock Memorial Day

aloxolt

Aloxolt Day