The song title was originally Silver Lining. 11 O'Clock Tick Tock was first played live at a concert in August 1979 in the Howth Youth Club. The title refers to a note from Bono's friend Gavin Friday on the door of Bono's home after Bono had missed a meeting.
- In this issue The Edge used for the first time the Memory Man echo effect
- The number is never released on a studio album of the band, on Under a Blood Red Sky is to hear the number though.
- In the early days of U2 this was their biggest hit and was played twice per often occur, including one as an encore.