President Trump has suggested he supports eliminating daylight saving time, although he's also called it a "50/50 issue." ...

President Donald Trump on Friday urged Congress to “push hard for more Daylight at the end of a day” in his latest dig at the ...

The Senate Commerce Committee took up the issue, which has bedeviled lawmakers for years - but it made no major progress, either.

In order to keep time accurately, we have always had to set our clocks by the ticks of a better one. Until the 1950s, the ...

President Donald Trump is weighing in again on the time change debate in America. He has flip-flopped on the issue in recent ...

Atomic clocks are the basis upon which a second is defined. But there is a new kid on the block, the optical clock, which ...

Atomic clocks have long been the gold standard for measuring time and frequency. Among them, optical clocks—using atoms like strontium or aluminum—have reached staggering levels of accuracy, with ...

Mr. Trump in the past had supported making daylight saving time permanent — that is, keeping clocks shifted one hour ahead, which happens in the spring. His December comment called for ...

THE TIMING OF THE BIOLOGICAL NIGHT RELATIVE TO THE ASTRONOMICAL CLOCK. AND SO THEY ... would push the schedule forward, keeping the country on daylight saving time. His post came a day after ...

Mr. Trump in the past had supported making daylight saving time permanent — that is, keeping clocks shifted one hour ahead, which happens in the spring. His December comment called for daylight ...