The New York Times Media Group, which publishes both newspapers, said the new online Global Edition combines the IHT, the Times and digital content from NYTimes.com.
Edited in New York, Paris and Hong Kong, it will provide users with around-the-clock geopolitical, business, sports and style news, plus commentary.
Starting today, IHT.com users are automatically redirected to the Global Edition and users of NYTimes.com can choose to set the Global Edition as their homepage.
Simultaneously, the IHT has unveiled a new look for its newspaper. Changes include; clearer headings, improved page navigation, pointers to online articles and greater emphasis on photography.
Stephen Dunbar-Johnson, publisher of the IHT, said: "Together with the Times, we are creating a powerhouse for high-quality global news - it is thanks to closer integration with New York that has made the dynamic new Global Edition online around-the-clock reality, and it is thanks to this that we have such a clear and sparkling new design for our newspaper."
Global Edition
Herald Tribune launches global online edition
LONDON - The International Herald Tribune, the global edition of The New York Times, today launched a revamped print edition and a new global online edition combining the Tribune with the Times.