The most accurate clock in the world is redefining the second[ Thu, 26 May 2016 13:01:17 EDT ]What if everything you knew about time was wrong and time actually moved at a different rate than what your watch or the clock on your phone is telling you right now? A new study is getting us closer to a much more accurate way to keep time and that could lead to more accurate GPS, faster stock trades, and a better power grid.