NEW YORK, June 17 (Reuters) - Amazon.com's ( AMZN ) annual Prime

Day sales event is scheduled for July 8 through July 11,

expanding to four days from two days compared to last year, the

company announced on Tuesday.

"We're extending it to four days because our members have

told us they just need more time to shop the deals," Jamil

Ghani, Amazon ( AMZN ) vice president of worldwide prime, told Reuters.

Amazon's ( AMZN ) expanding Prime Day comes as U.S. shoppers and

retailers face uncertainty on how tariffs will impact prices and

product availability, said Rob Garf, senior vice president of

strategy and insights at retail marketing firm Cordial.

U.S. shoppers spent $14.2 billion, up 11% year-over-year,

during Amazon's ( AMZN ) July 2024 Prime Day event, according to

Adobe Analytics. The e-commerce giant often faces competing

sales events from Walmart ( WMT ), Target ( TGT ) and, now,

ByteDance's TikTok Shop, which are trying to lure shoppers into

spending early on back-to-school and back-to-college merchandise

including personal electronics, apparel and home goods.

The online retailer wants to entice younger shoppers to sign

up for its subscription service Prime, by offering discounted

memberships for people between the ages of 18 and 24 and other

perks. Prime subscriptions typically cost $14.99 per month or

$139 per year.