"New Moon on Monday" is the tenth single by the English new wave band Duran Duran, released on 23 January 1984 in the United Kingdom. The second single to be taken from the band's third studio album Seven and the Ragged Tiger (1983), the song was another success, reaching the top ten on both the UK and US charts. On 11 February 1984, the single reached number nine on the UK Singles Chart and on 17 March, it reached number ten on the US Billboard Hot 100, after entering on 14 January 1984 at number 56. It did not chart well in Australia and Scandinavia, territories where its predecessor, "Union of the Snake", had been a big hit. This trend was reversed with the next single, "The Reflex", which became a worldwide number-one hit.