The fair will now open on 1 October 2021 and run until 31 March 2022, but will retain the name Expo 2020 Dubai.
Located on a 438-hectare area (1083 acres) site between Dubai and Abu Dhabi in the United Arab Emirates, the fair has been masterplanned by American architecture firm HOK.
The vast site will feature a trio of 21-metre-high lattice entrance gates made of carbon fibre by British architect Asif Khan.
The expo is the first to be held in the Middle East and the largest event ever planned for the Arab world. It was originally scheduled to take place from October 20 2020 until April 10 2021.
The theme of the expo is Connecting Minds, Creating the Future, while the vast site will have zones dedicated to three subthemes: opportunity, mobility and sustainability.
Pavilions dedicated to the subthemes are being designed by Foster + Partners, BIG and Grimshaw.
Bureau International des Expositions (BIE) member states voted by a two-thirds majority on 4 May to postpone the event.
The coronavirus pandemic has led to the cancellation or postponement of events around the world, including the Tokyo 2020 Olympics and the Venice Architecture Biennale, both of which will now take place in 2021.
For a full rundown of events impacted by Covid-19, see the dedicated page on Dezeen Event Guide.