when does amazon prime days end

Amazon Prime Day 2025, the summer event, ended on July 11, 2025, at midnight Pacific Time. This year it was extended to four days, running from July 8 to July 11. Additionally, there was a separate event called Prime Big Deal Days in October 2025, which lasted two days from October 7 to October 8, ending at 11:59 p.m. PDT on October 8. So, if referring to the main Prime Day event, it ended on July 11, 2025. If referring to the October Prime Big Deal Days, it ended on October 8, 2025, at 11:59 p.m. PDT.