 In July 2016, some workers in China went on unofficial strike at Walmart stores in Nanchang, Jiangxi Province, Chengdu, Sichuan Province, and Harbin, Heilongjiang Province against the company's new working-hours scheduling system.The striking workers protested the system, which allowed managers to schedule an unlimited number of hours per day totalling up to 174 hours per month without overtime pay.According to Walmart, workers could either opt into the new schedule or keep their original shifts, but pointed out that the new scheduling, which Walmart claim most workers they had contacted supported, allowed employees to work more shifts if they choose.