"What a Difference a Day Made" is a popular song originally written in Spanish by María Méndez Grever, a [bad word]  in 1934.

What a difference a day made,
twenty four little hours
Brought the sun and the flowers
where there use to be rain.

My yesterday was blue, dear
Today I'm a part of you, dear
My lonely nights are through, dear
Since you said you were mine

Oh, what a difference a day makes
There's a rainbow before me
Skies above can't be stormy since that moment of bliss
That thrilling kiss
It's heaven when you find romance on your menu
What a difference a day made
And the difference is you, is you

My yesterday was blue, dear
Still I'm a part of you, dear
My lonely nights are through, dear
Since you said you were mine

Oh, what a difference a day made
There's a rainbow before me
Skies above can't be stormy since that moment of bliss
That thrilling kiss
It's heaven when you find romance on your menu
What a difference a day made
And the difference is you, is you, is you