time

Latest about time

An artist's illustration of a quantum vortex surrounded by roman numerals.

Time might be a mirage created by quantum physics, study suggests

By Ben Turner published

Physicists have struggled to understand the nature of time since the field began. But a new theoretical study suggests time could be an illusion woven at the quantum level.

Astronomy
The World Clock in Berlin shows global times and has a large structure of the solar system on top, it is surrounded by people and buildings.

What is UTC?

By Adam Mann last updated

Reference Here's how time is coordinated around the world.

Reference
Camera in box with styrofoam packing

Best time to buy a camera: Shop smart and save

By Kimberley Lane last updated

Are you thinking of buying a camera? Here are some tips and tricks to help you save money on your next purchase.

Skywatching Kit
A close-up photo of Big Ben in London.

Pesky 'leap second' will be abolished by 2035

By Jennifer Nalewicki published

An international group of experts has voted to retire the leap second by 2035.

Astronomy
Space time clock

The Illusion of Time: What's Real?

By Robert Lawrence Kuhn last updated

Any clock keeps time, but space-time is much harder to pin down.

Astronomy
an abstract view of a wormhole with a clock overlaid

What is time?

By Jonathan O'Callaghan, How It Works magazine last updated

Here's how time works, according to science.

Astronomy
World clock showing 12 different time zones.

World clock: What is it and how does it work?

By Laura Mears published

Reference The world's timekeepers balance ultra-precise atomic clocks with the irregular spin of our planet to come up with the world clock.

Reference
Humankind has been fascinated by time-travel for centuries.

Can we time travel? A theoretical physicist provides some answers

By Peter Watson published

Can we time travel like they do in the movies? The laws of physics might forbid it.

Astronomy
A clock face swirling to infinity

The 'twin paradox' shows us what it really means for time to be relative

By Paul Sutter published

What goes for moving clocks goes for everything else; physics, chemistry and biology all operate at a slower pace in moving frames of reference.

Astronomy
A strontium lattice optical atomic clock. Ultraprecise atomic optical clocks may redefine the most fundamental unit of time in the next decade.

Ultraprecise atomic optical clocks may redefine the length of a second

By Tia Ghose published

The length of a second hasn't been updated in 70 years, but ultraprecise atomic optical clocks are on track to change that.

Technology
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