Does Anybody Really Know What Time It Is?" by the band Chicago.It was written and sung by Robert Lamm and was included on their 1969 debut album, Chicago Transit Authority. While it was on their first album, it wasn't released as a single until October 1970, after two other hits from their second album. It went on to become a Top 10 hit, peaking at #7 on the US Billboard Hot 100 chart. | Mark Hall