iPhone 5S Release Date

Sept. 20 Release Date ... Maybe We're a bit less than a month from getting our hands on the iPhone 5S, the next generation iPhone, and the iPhone 5C, the new, cheaper and more colorful plastic-cased handset, according to a report in Japan's Nikkei, relayed by BGR's Zach Epstein.
www.huffingtonpost.com Published: August 28, 2013

Apple is to announce the two new devices at an event on Sept 10, according to speculation, and the products' release 10 days after the announcement is consistent with previous iPhone releases.

Apple announced the iPhone 5 last Sept. 12 and it became available in a handful of "launch countries" nine days later. See this story on www.huffingtonpost.com