What are new technologies of measuring time?

for a physics assignmnet we were asked to research new ways of telling/measuring time. it can be any methods that are brand new, or currently being developed. (like how scientists are developing ways to measure the half lives of isotopes, etc)





i have no idea where to find information on this, so any help/input would be great.

What are new technologies of measuring time?
atomic clocks are a relatively new technology in comparison with others.





An atomic clock is a type of clock that uses an atomic resonance frequency standard to feed its counter. Early atomic clocks were masers with attached equipment. Today's best atomic frequency standards are based on absorption spectroscopy of cold atoms in atomic fountains. National standards agencies maintain an accuracy of nanoseconds


(10^-9) seconds





I found an article on a more modern clock that is accurate to below the degree of the picosecond:





Clock Technology enables sub-picosecond accurate signals.





June 9, 2006 - RotaryWave(TM) on-chip clock technology enables semiconductors to achieve optimal performance by delivering high-resolution, low-noise timing signals with minimal power. Without requiring any manufacturing changes for implementation, it works on all existing manufacturing processes and technologies. Clock scales with advanced processes, utilizes Mobius timing generator, and exhibits tolerance to substrate, power supply, and radiated noise.





However, this is to do with clocks that control timing of complicated circuits like the CPU of a computer system, etc, so they do not tell time as a clock on the wall does, but they do break time down into much smaller pieces so that electronic technology can run to a high degree of precision.