The most accurate clock in the world is redefining the second

Story highlights

  • Current time is measured by atomic clocks
  • Optical clocks measure time better, but the technology has been limited
  • More precise timekeepers could improve GPS, stock trades, the power grid

(CNN)What if everything you knew about time was wrong, and time actually moved at a different rate from what your watch or your phone is telling you right now?

A study released Wednesday in Optica, the Optical Society's research journal, is putting the pieces together about how to get an even better way to keep time.
    Beyond being a great conversation starter in a philosophy class or at the bar, you might want to know about this more precise timekeeper because it could mean better directions, safer travel and even more money in the stock market.