SummerSlam 2025 is a two-day event taking place on Saturday, August 2, and Sunday, August 3, starting at 6 p.m. ET on both days. Each night includes a preshow beginning at 3 p.m. ET, and the event features multiple matches, with a total of 12 matches across the weekend. While exact end times are not given, previous SummerSlam events typically last around 4-5 hours per night, plus the preshow. Given that this is a two-night event, the duration will be similar on each night, likely in the 4-5 hour range per evening including preshow time.