The 2021 24H GT Series powered by Hankook was the seventh season of the 24H Series with drivers battling for championship points and titles and the twelfth season since Creventic, the organiser and promoter of the series, organised multiple races a year. The races were contested with GT3-spec cars, GT4-spec cars, sports cars and 24H-Specials, like silhouette cars.
Calendar Round Event Circuit Date 1 Dubai 24 Hour Dubai Autodrome, Dubai, United Arab Emirates 15–16 January NC 6 Hours of Abu Dhabi Yas Marina Circuit, Abu Dhabi, United Arab Emirates 22-23 January 2 12 Hours of Mugello Mugello Circuit, Scarperia e San Piero, Italy 26–27 March 3 12 Hours of Circuit Paul Ricard Circuit Paul Ricard, Le Castellet, France 24 April 4 12 Hours of Hockenheimring Hockenheimring, Hockenheim, Germany 22–23 May 5 24 Hours of Barcelona Circuit de Barcelona-Catalunya, Montmeló, Spain 4–5 September 6 12 Hours of Hungary Hungaroring, Mogyoród, Hungary 2–3 October 7 24 Hours of Sebring Sebring International Raceway, Sebring, Florida, United States 20–21 November Cancelled Event Circuit Original Date 12 Hours of Spa-Francorchamps Circuit de Spa-Francorchamps, Stavelot, Belgium 23–25 April 24 Hours of Portimão Algarve International Circuit, Portimão, Portugal 16–18 July Coppa Florio 12 Hours of Sicily Autodromo di Pergusa, Pergusa, Italy 2–3 October Source:
Entry list