Listen to What a Difference a Day Made online. What a Difference a Day Made is an English language song and is sung by The Four Aces. What a Difference a Day Made, from the album Relax and Take It Easy With All the Original 1950's Music from "Call the Midwife" Series 1, 2, 3 & the Christmas Special, was released in the year 2014. The duration of the song is 2:43. Download English songs online from JioSaavn.