Amazon’s Bold Prime Day Move Could Change How You Shop This Summer

Amazon's biggest shopping event of the year is getting even bigger. 

For the first time since launching Prime Day in 2015, the company is extending the event to four full days, running from July 8 through July 11, CNBC reported.

The 96-hour sale kicks off at 12:01 a.m. PT and promises a rotating slate of daily "deal drops," available while supplies last. Amazon is banking on the added urgency to drive more traffic, sales—and Prime subscriptions.

What began a decade ago as a 24-hour...