Earlier this month, AllthingsD received a tip saying Apple is going to hold their big iPhone event on September 10. Although the information hasn't been officially confirmed in any way, another rumor has popped up suggesting the iPhone 5C and iPhone 5S will go on sale on September 20.

The information comes courtesy of Greek blog Techmaniacs, which also points out that Apple is going to start rolling out the final version of iOS 7 on September 16. This sounds plausible, as the Apple iOS 7 Golden Master release is tipped to be out on September 5.

Previously, the iPhone 5S and iPhone 5C were rumored to begin shipping on October 25. However, this date is most probably concerning only the second or third waves of countries that'll get the new iPhone lineup.

Meanwhile, according to the same source, the company is preparing for a second media event that will take place in October. There, Apple will announce the iPad 5 and iPad mini 2. Both are expected to go on sale on October 25.

Source: GSM Arena