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Inspiration4's Press Release Times Liftoff at 8:02:56 p.m. EDT on September 15, 2021.
The mission press release says 8:02:56 p.m. EDT from Launch Complex 39A. Spaceflight Now prints the same clock time and 0002:56 GMT on September 16. The SpaceX page fetched on October 20, 2026, prints 10:02 p.m. ET. St. Jude's page says the flight raised more than $250 million. The mission site says over $240 million.