SummerSlam traditionally lasts around 4 to 6 hours during a single-night event. However, starting in 2025, SummerSlam became a two-day event for the first time, extending the total duration across two days. Each night's event starts at 6 p.m. Eastern Time with multiple matches scheduled, making the total SummerSlam experience last over two evenings. For example, SummerSlam 2025 featured 12 matches split over two days, with preshows starting earlier in the afternoon. So, the length of SummerSlam varies by year:
- Before 2025, it typically lasted about 4 to 6 hours in one night.
- Since 2025, it has evolved into a two-night event, effectively doubling the total length, with each night around 4 to 6 hours of ring action plus preshows.
