Amazon announced Tuesday that its annual Amazon Prime Day will actually run for two days this year, starting at midnight PT on July 15. Last year, Amazon sold 100 million products during Amazon Prime Day, even though a glitch caused servers to go offline.

Amazon said last year's Prime Day was its biggest ever, which means it's plausible this year could be more successful since it runs longer. Amazon's own products have been bestsellers. Last year, the Fire TV Stick, Echo Show and Echo Spot were among the top-selling products.

Amazon said customers in the U.S., U.K., Spain, Singapore, Netherlands, Mexico, Luxembourg, Japan, Italy, India, Germany, France, China, Canada, Belgium, Austria, Australia and for the first time, the United Arab Emirates, will be able to participate.

Amazon Prime members can buy highly discounted products during the sale, which applies to most of the goods Amazon sells. However, some products are highly limited and sell out within minutes, creating a sort of Black Friday scramble to buy items as quickly as possible.