You can buy all kinds of conventional clocks that have hands and numbers for easy reading. Or, like [Fabio Ricci], you could build yourself something a little more esoteric, like this neat shadow ...

Optical lattice clocks are emerging timekeeping devices based on tens of thousands of ultracold atoms trapped in an optical lattice (i.e., a grid of laser light). By oscillating between two distinct ...

Fall is here. The sun is setting earlier. Days are getting cooler (sort of), and nights are getting longer. Soon, the clocks will fall back, shifting our daylight hours even more. President Donald ...

It’s finally October, which means the temperature is getting cooler, the sun is setting earlier and fall is officially upon us. That may leave you wondering – when will you have to set back your clock ...

Many countries around the world, and most of the United States, still observe the practice of daylight saving time. Though some argue the practice should be brought to an end. The yearly occurrence ...

Correction & clarification: A prior version of this story misstated the origin of the U.S. law on daylight saving time. Many countries around the world and most of the United States still observe the ...

Your body’s internal clock is gearing up for the end of daylight saving time (DST) if it is getting dark before dinner and your morning coffee feels a little early. Yes, we “fall back” this time again ...

Michigan is seeing shorter days, and in less than a month it will be dark much earlier when it's time to turn the clocks back an hour. Days will gradually get shorter leading up to the end of Daylight ...

When does daylight saving time begin again in 2026? Daylight saving time will begin on March 8, 2026, between 2 a.m. and 3 a.m. What is daylight saving time? Daylight saving time is the period between ...

Now that fall is officially here, so is the rush of end-of-year holidays and events. People are slowly prepping for Halloween, Thanksgiving and even the end of daylight saving time. This is a yearly ...

When is daylight saving time? Daylight saving time starts on the second Sunday of March, when clocks spring forward an hour. Clocks will fall back an hour – so we will gain an hour – on Nov. 2, 2025, ...