California declares July 1, 2009 "DTS 7.1 Day"
While DTS has been saying that the California Assembly has recognized today as "DTS 7.1 Day," it's basically just the work of the aforementioned mayor and assemblywoman. Don't expect Governor Schwarzenegger to make a statewide declaration of the day, or for everyone from Napa to San Diego to celebrate 7.1 surround. It doesn't really represent anything at all.
Besides DTS 7.1 Day, July 1 distinguishes itself as Canada Day, Tartan Day in New Zealand and Australia, and the halfway mark for leap years. Of course, none of these celebrations really involve surround sound.
— Will Greenwald