How long is the presidential debate? The duration of Presidential debates in the U.S. usually last approximately 90 minutes. This duration actually depends on specific rules and criteria made by the debate organizers.   image credit - Key HIghlights from tonight’s debate: Donald Trump and Kamala Harris are set to face their first presidential debate. The excitement is high for both, Harris entered the election race just 1.5 months ago and has limited time to win the hearts of voters and Trump is very optimistic about himself. The debate is scheduled and hosted by ABC News and will strat at 9 p.m. ET.   Interesting and simple rules of the debate. The rules for the presidential debate is that no studio audience aren’t allowed to have conversations during breaks and the microphone of Trump and Harries is only turned on when it's their turn to speak. Both of them are provided with only a pen and pad and a bottle of water. How will the 2024 US presidential debate affect ...