according to BRAVE:
The first shot was fired at approximately 6:11 p.m. during former President Donald Trump’s rally in Butler, Pennsylvania, on Saturday. This information is mentioned in multiple sources, including:
• “The Attempted Assassination of Donald Trump and Aftermath: As It Happened” (ABC News): “At approximately 6:11 p.m., a volley of at least three gunshots rang out as Trump delivered his campaign speech.”
• “What to Know About the Assassination Attempt on Trump - The New York Times”: “Two people, including the suspected gunman, were killed and two were critically injured. … An analysis by The New York Times suggested that the gunman had fired eight shots, with the first shot occurring at around 6:11 p.m.”
Please note that these sources are consistent in reporting the timing of the first shot as 6:11 p.m.
ThankQ for digging!