One of my favourite performances of this song is by Dinah Washington recorded in 1959. “Cuando vuelva a tu lado”, the Spanish original was written in 1934 by María Grever. English lyrics “What a Diff’rence a Day Made” were written by Stanley Adams later that year.

What a difference a day made, twenty four little hours
Brought the sun and the flowers where there used 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 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

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

References:
Performance history, Second hand songs
Lyrics, Jamie Cullum Lyrics
The flowers are from a cabbage shaped succulent in the garden