when do prime days end

Amazon Prime Day events generally end at 11:59 PM in the respective time zones for the event day. For example, Prime Big Deal Days (a version of Prime Day held in October 2025) officially ended at 11:59 PM Pacific Time on October 8, 2025. Similarly, the summer Prime Day in July 2025 ended at 11:59 PM Pacific Time as well. These sales usually last around 48 hours or more, depending on the specific event, giving Prime members two days or up to four days for the extended event to shop exclusive deals.