President Mauricio Macri of Argentina assumed the one-year G20 presidency on 30 November 2017 , during an official ceremony at the Kirchner Cultural Centre in Buenos Aires . President Xi Jinping of China ( 2016 host ) , Chancellor Angela Merkel of Germany ( 2017 host ) , and Prime Minister Shinzō Abe of Japan ( 2019 host ) all sent messages of support , which were shown at the ceremony
2016 host
2016 G20 Hangzhou summit
2018 G20 Buenos Aires summit