Kimi Antonelli, 19, is the youngest driver to lead the F1 world championship [Getty Images]Mercedes driver Kimi Antonelli bounced back from a difficult sprint race to take pole position for the Miami Grand Prix.It was the Italian's third pole in four grands prix this season and his team-mate and title rival George Russell was down in fifth place, 0.399 seconds adrift.Max Verstappen took second, 0.166secs from Antonelli, after a remarkable turnaround in form for his Red Bull team following upgrades to their car.McLaren's Lando Norris, who dominated the sprint earlier on Saturday, was fourth, behind Ferrari's Charles Leclerc, whose team-mate Lewis Hamilton was sixth, ahead of McLaren's Oscar Piastri.Sunday's race has been moved forward by three hours to 18:00 BST (13:00 local time) because of the threat of thunderstorms.A statement from Formula 1 and governing body the FIA said the decision was made because "the weather forecast (predicts) heavier rainstorms later in the afternoon close to the original planned race start time" of 16:00 local.Norris takes dominant win in Miami sprint raceHow to follow Miami Grand Prix on the BBC'Light at the end of the tunnel' for VerstappenAntonelli secured his pole with his first run in final qualifying, and a mistake on his final run meant he faced an anxious wait to see if anyone could improve his time.But only Verstappen, who was third fastest on the first runs, managed to go faster on a second attempt in the 33C Miami heat.The 19-year-old, who was demoted from fourth to sixth in the sprint by a five-second penalty for exceeding track limits, said: "It has been an amazing day to be on pole again."It was a difficult start to the day with the sprint but super-happy with the recovery. I got a little bit excited on the final lap of Q3 but the first lap was good enough. I was very stressed just waiting for everyone to finish their laps."Red Bull, like McLaren and Ferrari, brought a major upgrade to their car for this weekend, and while McLaren's worked well early on, refinements from Red Bull and Mercedes left the sprint winners trailing.Verstappen, who has been considering his future in Formula 1, said "there's light at the end of the tunnel" after his team's improvements."To be on the front row after being over a second behind is really incredible. It's massive."It is everything because before nothing really worked, I felt like a total passenger. It could understeer, it could snap on me. "We are still not where we want to be in terms of understanding everything, but the car feels a lot more together and I can finally drive the way I want to drive."Verstappen's team-mate Isack Hadjar, who had had a promising start to his Red Bull career, was left trailing, 0.825secs adrift of the Dutchman in ninth. He said he had been struggling with a lack of power all weekend.McLaren fall back after sprint one-twoMcLaren slipped back from their effort in the sprint, for which they qualified first and third and finished one-two in the race.Norris was 0.385secs from pole but just 0.04secs behind Leclerc.The world champion said: "I felt like I was doing a better job but we were slower. Today is probably a little more where we should be."We probably could have been third. The weird thing is how much pace we lost from yesterday. We need to understand that some of that is conditions."It is a lot hotter than this point yesterday and the wind was a little different, but all in all it was a lot trickier, a much messier session from our aide as a team, myself included."Some things to understand. It's not like we did a bad job, I think yesterday everyone did do a bad job and we capitalised and today we are more where we deserve to be."Leclerc was a little disappointed with third after Ferrari's upgrade, saying they were just not fast enough to compete at the very front. He headed Hamilton by 0.176secs.The top 10 behind Piastri was completed by Alpine's Franco Colapinto, on good form on one lap all weekend, Hadjar and the second Alpine of Pierre Gasly.At the back, Fernando Alonso made it 40 grand prix qualifying sessions in a row beating Aston Martin team-mate Lance Stroll as his team improved after qualifying right at the back for the sprint, both their drivers beating the Cadillacs.Top 101. Kimi Antonelli (Mercedes) - 1:27.7982. Max Verstappen (Red Bull) +0.1663. Charles Leclerc (Ferrari) +0.3454. Lando Norris (McLaren) +0.3855. George Russell (Mercedes) +0.3996. Lewis Hamilton (Ferrari) +0.5217. Oscar Piastri (McLaren) +0.7028. Franco Colapinto (Alpine) +0.9649. Isack Hadjar (Red Bull) +0.99110. Pierre Gasly (Alpine) +1.012Full qualifying resultsThe remarkable life of Zanardi, a 21st century hero who inspired millionsCan you name every location to have hosted a US F1 race?Andrew Benson Q&A: Send us your questions