Most atomic clocks sold in the U.S. have every American time zone setting, but it's good to double check before buying one. You'll also want to consider what other features you need in an alarm ...

Which atomic clocks are best? The first time zone, Greenwich Mean Time, was established in the late 1600s to assist sailors before the invention of the train and railway in the mid-1800s expanded ...

Which atomic clocks are best? The first time zone, Greenwich Mean Time, was established in the late 1600s to assist sailors before the invention of the train and railway in the mid-1800s expanded ...

Which atomic clocks are best? The first time zone, Greenwich Mean Time, was established in the late 1600s to assist sailors before the invention of the train and railway in the mid-1800s expanded ...

Which atomic clocks are best? The first time zone, Greenwich Mean Time, was established in the late 1600s to assist sailors before the invention of the train and railway in the mid-1800s expanded ...

Not all atomic clocks can be used anywhere in the world as some only have compatibility with certain time zones. Using one of these outside a supported time zone could mean an inaccurate time ...

Nuclear clocks might soon rival the best atomic ones as supremely accurate timekeepers — a testament to the value of both competition and cooperation in research. Nuclear clocks might soon rival ...

The best projection alarm clocks are easy to read and simple to program, with a swivel attachment so you can control where the time is displayed (whether you’d like it on your ceiling or a wall).

A new experiment involving a network of entangled atomic clocks could finally help us test how quantum mechanics fits with ...

Best for kids: Echo Show 5 The best smart alarm clocks are easy to set up and offer many ways of waking up, whether you prefer those with lights, soothing natural sounds, or multi-step alarm options.

The SmartSet, by Emerson, looks an awful lot like the alarm clocks you might have had a few decades ago. It uses a red LED interface which looks as much at home today as it did in the '90s.

News Published: 02 June 2015 Hyper-precise atomic clocks face off to redefine time Elizabeth Gibney Nature 522, 16–17 (2015) Cite this article ...