System Preferences Date & Time Icon

This is more of a curiosity question that's been bugging me and I can't find an answer to. With the new MacOS Sierra, if you open the System Preferences, and look at the Date & Time icon used, the it shows the date July 18th, 10:10:30. In the past, Apple has typically been purposeful about their use of dates in icons, whether it's the day Steve Jobs came back to Apple, or the release of a new product. __So the question is, why is July 18th used?__