The Geochron World Time Indicator is a clock that doubles as a live map of where the sun is shining on the Earth. Back in its day, it was a cult piece that some have dubbed the “Rolex on the ...

Now a Japanese company has commercialized one approach—an optical-lattice clock it claims is the most accurate on the market.

U.S. lawmakers held their first hearing Thursday in more than three years on a long-running debate to end the practice of ...

Precision equipment manufacturer Shimadzu Corp. said it has created the world’s most accurate time device: a clock that won’t deviate by 1 second even after operating for 10 billion years.

The custom made a comeback in World War II ... to take the proposal forward," it said. "As the clock is ticking, we will take our time to assess the situation." - It's about time - For Kelly ...

One of the world's largest clocks sits atop a former soap factory in Clarksville, Indiana. The Colgate clock, with a 40-foot diameter, has been telling time since 1924. High atop a former soap ...