"Bad Time" is a song written by Mark Farner and performed by Grand Funk. It reached number 4 on the Billboard Hot 100 in June 1975 and appeared on the band's 1974 album, All the Girls in the World Beware!!! Jimmy Ienner produced the song; it was arranged by Tony Camillo. It was the group's fourth and final single to reach the Top 10 and their final Top 40 hit in the U.S. "Bad Time" marked the end of the group's two-year run as Grand Funk, during which time they scored all their major hits. Following this release, their name reverted to Grand Funk Railroad.