Previously an A5 guide to London events and culture, The Knowledge has been redesigned to the size of Saturday's Times Magazine. Former Time Out editor Dominic Wells has been appointed as editor.
It will be published in four regional editions -- Scotland and Ireland; North of England; West and Central; London, East and South East -- to offer a local as well as a national viewpoint.
Features content and searchable listings will be available on Times Online, which will also offer users the chance to watch trailers of films reviewed and listen to excerpts of music reviewed in the guide.
George Brock, editor of the Saturday Times, claimed The Knowledge was "the first magazine of its kind and highlights how other guides are trapped in the past".
The Knowledge is being promoted on national TV and radio, with 48-sheet posters in London and South East from today in a campaign created by Rainey Kelley Campbell Roalfe/Y&R and planned by Carat.
In another change from this Saturday, the Books section has been taken out of the Weekend Review and given its own supplement, also containing games and puzzles.
The existing international edition, which was essentially a cut-down version of the domestic Times has now been put under the charge of John Mair, the former editor of the Scottish edition of The Times.
Mair will select news and features content from the UK edition and syndicated content from publishers such as the Yomiuri Shimbum, The Telegraph of India and Spain's El Mundo. The paper will be published Monday to Saturdays.
It will be printed in the same compact format as The Times at Charleroi and Marseilles in France and Madrid. News International has marginally increased the print run to 30,000 copies, which it will sell at full-rate.
Robert Thomson, editor of The Times, said: "As we continue to develop our audience in the UK, both online and in print, the new international edition will ensure that we are the dominant global title, particularly in comment, international news and business coverage."
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