Foxconn has added workers to production lines and is “running its factories around the clock” to reduce waiting times for the iPhone 5s, the Wall Street Journal reports. The 5s is now shipping within three to five business days in the U.S. online store, down from a wait of two to three weeks. As reported last month, the production boost has come at the expense of the iPhone 5c. “We have been churning out about 500,000 iPhone 5s’s everyday, the highest daily output ever,” a Foxconn executive said. The executive also noted the 5s takes longer to assemble than a 5c or iPhone 5.