iPhone 6s Release Date
The iPhone 6s release date is rumored for September 18th and September 25th. September 18th is the better fit for Apple's release protocol and it's currently the front-runner for the first iPhone 6s and iPhone 6s Plus release date.
If this date holds up, it will be the day that pre-orders land on doorsteps and the new iPhone models go on sale in stores. If you miss out on the pre-order, you might be able to find a device in stock on the iPhone 6s release date itself.