"Time" is the fourth track from the English progressive rock band Pink Floyd's 1973 album The Dark Side of the Moon, and the only song on the album credited to all four members of the band, though the lyrics were written by Roger Waters. It is the final Pink Floyd song credited to all four members and the last to feature Richard Wright on lead vocals until "Wearing the Inside Out" on The Division Bell. This song is about how time can slip by, but many people do not realise it until it is too late. Roger Waters got the idea when he realised he was no longer preparing for anything in life, but was right in the middle of it. He has described this realisation taking place at ages 28 and 29 in various interviews. It is noted for its long introductory passage of clocks chiming and alarms ringing, recorded as a quadrophonic test by Alan Parsons, not specifically for the album.