"End of Time" is a song recorded by American singer Beyoncé for her fourth studio album, 4 (2011). It was written by Knowles, Terius "The-Dream" Nash, Shea Taylor and David "Switch" Taylor while its production was handled by Knowles, Nash and Taylor. Initially rumored to be titled "Till the End of Time", a demo of the song leaked online on May 20, 2011, giving rise to speculation that the song was a potential follow-up to the lead single, "Run the World (Girls)" (2011). However, "Best Thing I Never Had" was ultimately chosen as the second single. In February 2012, it was announced through Knowles' website that "End of Time" will be the eighth and final single from 4. It was sent to contemporary hit radio stations in the United Kingdom on April 23, 2012.

An uptempo R&B, dance and funk song, "End of Time" exhibits the influence of late Nigerian music legend Fela Kuti; its bass line was inspired by the multi-instrumentalist's work. Also displaying elements of Afrobeat, the song's instrumentation includes marching band drums, percussion and horns. The high energy level provided by its instrumentation has similarities to several songs by Michael Jackson from the Off the Wall era (1979–80). "End of Time" was lauded by music critics, who coined it as one of highlights on 4 thanks to Knowles' boldness and its dance beat that makes the song a catchy one. Critics also commended the uplifting lyrics and Knowles' confident vocal delivery.

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