I really wish the Apple presenters would stop waving their arms... since I noticed they were doing it, I can't stop seeing it:)
Similarly, iPhones are all set to 9:41 in marketing materials because that's the approximate time Steve Jobs introduced the first iPhone back in 2007.
In general, Apple's presenter's watches (and demo devices) show the local time for live events, and they tried to do that here but obviously didn't do a very good job.