how long is prime day

Amazon Prime Day typically lasts 48 hours (2 days). For example, the recent Prime Big Deal Days event, often referred to as October Prime Day, ran for 48 hours from October 7 to October 8, 2025. Similarly, the big summer Prime Day event in July 2025 lasted four days, but usually, the core Prime Day is about two days long. The duration can vary slightly depending on the specific event and year, but the standard and original length of Prime Day is two days.