Bendistraw

This is the most precise clock ever produced. Yes, that is a clock. You may have heard of the atomic clock (not to be confused with the Doomsday Clock) produced by the National Institute of Standards and Technology (NIST) which keeps time to a single mercury ion. This one uses an aluminum ion and will not lose or gain a second in 3.7 billion years.

Currently, seconds are still measured on cesium which is only accurate to about 100 million years (pshaw!). Before the standard can be changed, this new clock must be reproduced in multiple labs. So far the NIST has completed a second aluminum clock which is a very good sign of things to come (if you're rooting for a new clock).

The logic clock is based on a single aluminum ion (electrically charged atom) trapped by electric fields and vibrating at ultraviolet light frequencies, which are 100,000 times higher than microwave frequencies used in NIST-F1 and other similar time standards around the world. Optical clocks thus divide time into smaller units, and could someday lead to time standards more than 100 times as accurate as today's microwave standards. Higher frequency is one of a variety of factors that enables improved precision and accuracy.

Accuracy is determined by probing the ion with a laser to determine its resonant frequency. The two aluminum clocks are accurate to each other until you compare 17 decimal places in.

Still however there is no solution bringing Friday closer to Monday :(

Link via- sciencedaily.com