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

Other days

cursing

Cursing Day
aloxolt

Aloxolt Day
martini

Martini Day
prosecco

Prosecco Day
reading

Reading Day
hannah

Hannah Day
bonang

Bonang Day
carpenters

Carpenters Day
bounce

Bounce Day
ormille

Ormille Day