"Ketteiteki Sanpunkan" (決定的三分間, "The Decisive Three Minutes") (stylised as "The Decisive 3min.") is one of the two songs that made up the fourth single by Japanese entertainer Chiaki Kuriyama, along with "Oishii Kisetsu". They were released on March 2, 2011, as the lead singles from her debut album Circus, released two weeks later. Both songs were produced by musician Ringo Sheena, who covered "Ketteiteki Sanpunkan" for her album Gyakuyunyū: Kōwankyoku in 2014.