This story gave an incorrect date for the filing of the patent. It was filed with the U.S. Patent and Trademark Office in 1999.
Apps to help adjust to daylight saving
This Sunday morning, our clocks spring forward one hour to mark the beginning of daylight saving time. While it might be nice for some to have more light at the end of the day, it can be tough for bodies to adjust to darker mornings. In this Tech Minute, CNET's Kara Tsuboi reports on some ways technology can help ease the transition.