Complex sentence: On 8 November 2007, Musharraf announced that the election would be held by 15 February 2008, but the election date was changed to occur on or before 9 January 2008.
Split into simpler sentences: On 8 November 2007, Musharraf announced that the election would be held by 15 February 2008,. Later the election date was changed to occur on or before 9 January 2008.