4 pages | PDF | 1.2 MBI Didn't Know What Time It Was is a song composed by Richard Rodgers with lyrics by Lorenz Hart. It is set in the key of A♭ major and F minor and has a total of 56 measures. The song is an up-tempo jazz standard with a lighthearted, playful energy that is perfect for singing and dancing. It has a bright melody and lyrics full of witty lines and clever rhymes, making it a great source of entertainment. The song is sure to leave you feeling relaxed, enjoyable, and full of joy.