Constants: This is the fastest way to audit a spreadsheet for errors. It finds every cell that contains a manually typed ...

In his decades-long career in tech journalism, Dennis has written about nearly every type of hardware and software. He was a founding editor of Ziff Davis’ Computer Select in the 1990s, senior ...

In iOS 26, Apple has made it so that the clock on the Lock Screen can be expanded to fill more of the display, making it easier to read. This can be done in Customize mode thanks to a new drag handle ...

The Doomsday clock was set at 89 seconds to midnight on Tuesday morning, putting it the closest the world has ever been to what scientists deem "global catastrophe." The decades-old international ...

When you want to take a group photo, but no stranger is around to take one for you (or you don't want to hand them your expensive new smartphone), you can use your iPhone's camera timer to get the job ...

When calculating time intervals in Excel, you are looking for the time that has passed between two given sets of time. Because Excel converts dates and times into numbers behind the scenes, ...

An Excel timer is one that will sit within a cell and count down the seconds as they tick by. Excel doesn't have this kind of feature available in the program's standard set of tools, so to get the ...

To measure time, you need a constant rhythm. For eons, the regular movements of the sun and moon have set the pace for all of life on Earth. But over millennia, humans have sought and found more ...

Physicists have demonstrated all the ingredients of a nuclear clock — a device that keeps time by measuring tiny energy shifts inside an atomic nucleus. Such clocks could lead to vast improvements in ...

At 11:30 one night in May 2024, a graduate student, Chuankun Zhang, saw a signal that physicists have sought for 50 years. As a peak rose from the static on his monitor at the research institute JILA ...