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The e-commerce giant’s promised blitz of summer deals for Prime members started at 3:01 a.m. Eastern time on Tuesday. For the first time, Seattle-based Amazon is holding the now-misnamed Prime Day over four days; the company launched the event in 2015 and expanded it to two days in 2019.

Amazon Prime Day started July 8. Here's everything you need to know about the best deals, membership, and when the mega sale ends.