Today most electric clocks or watches measure the steady vibrations of quartz crystals. But even the best pacemakers drift; in one form or another, creeping chaos eventually corrupts the order of ...

Sunrise alarm clocks mimic the gradually brightening light of the sun to ease you out of sleep. Think of it as a biological hack. “We evolved to align our sleep-wake cycles with the sun ...

As convenient as it might be to use your phone as an alarm clock, standalone alarm clocks come with all kinds of features that can make waking up — or even going to sleep — a little less painful.

This year, that date falls on Sunday, Nov. 3, with clocks rolling back one hour at 2 a.m. that morning. Daylight saving time is a changing of the clocks that typically begins in spring and ends in ...

Ekkehard Peik is a clock-maker. But instead of spending his days looking at tiny cogs and springs through a magnifying glass, the tools of his trade are powerful lasers, wires and, occasionally ...

FOR THE discerning timekeeper, only an atomic clock will do. Whereas the best quartz timepieces will lose a millisecond every six weeks, an atomic clock might not lose a thousandth of one in a decade.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Picture a clock ...

This marks the return to standard time. When local time reaches 2 a.m., clocks will turn backward an hour to 1 a.m. Your ...

Clocks will go back an hour in the United Kingdom in the early hours of Sunday 27 October. This will mark the end of British Summer Time (BST) and daylight saving, and a return to Greenwich Mean ...

So too, the clocks will change. The sun will continue to set over two minutes earlier every day, until the end of daylight saving time, when it jolts an extra hour earlier. Between the summer and ...

A rising contender for the development of ultra-precise nuclear optical clocks is the nuclear first-excited state of 229 Th isotope. Its long half-life of 10 3 seconds and low excitation energy of ...