That may be the original but this is the version that Robin Dransfield does, ( oral tradition strikes again**BG**)
When Its nightime in Italy its Wednesday over here,
( learned from the singing of Robin Dransfield)

A naughty haughty college boy threw all his books away
Says he I've lost my appetite my hair is turning grey
I know my Greek and history and Latin is applied
And If East is east and west is west then can't you tell me, why oh why?

When it's nightime in Italy
Its Wednesday over here
Oh the onions in Sicily
Make people cry in California
How does a fly?
When does a bee?
And how does a wasp
Sit down to have its tea?
And if you talk to an Eskimo
His breath will freeze your ear
When it's nightime in Italy
And Wednesday over here

When it's nightime in Italy
And Wednesday over here
When its fish day in Birmingham
Don't ever try to milk a kipper
Dogs have their barks
So do the trees
And Pork pies are beef
And some are Mysteries
And we all paid our income tax
And never shed a tear
When it's nightime in Italy
and Wednesday over here

This learned guerned college boy stood up in class and said
Well I've learned at my geography that Granddads feet are dead
But the reason I speak Portuguese is I'm some clever guy
And if parley voo means how are you .Then cant you tell me ,why oh why

When it's nightime in Italy
Its Wednesday over here
And when its high tide at Waterloo
You can mock soup
But you can't mock turtle
How high is up I'd like to know
And how low is down
And when shall we have snow
And if there sanwidges for everyone
And real hops in our beer
Then it's nightime in Italy
and Wednesday over here

When it's nightime in Italy
And Wednesday over here
And when were all multi-millionaires
We'll have a land that's fit for heroes
They'll be no storms
They'll be no gales
And we'll all wear a smile
Just like the Prince of Wales
And we'll all go on our holidays
And dive off Wigan Pier
When it's nightime in Italy
And Wednesday over here