Facing his first Question Time back in the top job, Prime Minister Kevin Rudd has indicated that he will not stick with the election date chosen by Julia Gillard.

Mr Rudd was sworn in as Prime Minister this morning following his stunning win over Ms Gillard in a Caucus ballot last night.

Ms Gillard announced in January that the poll would be held on September 14, but Mr Rudd says he will "identify a date for an election" in accordance with the allowances under the Constitution.

Mr Rudd could hold the election as early as August 3 or hold off as late as November 30.

Facing fresh uncertainty over the election date, the Opposition has been demanding Mr Rudd name the date and make it soon.

Last night's ballot also triggered an avalanche of senior departures from Labor's ranks, with more than one-third of the Gillard ministry resigning, including Wayne Swan, Greg Combet, Craig Emerson and Peter Garrett.

Read the story here and look back at our blog to view the comments, images, video and analysis as it happened.