Time is a straightforward concept - or is it? The passing of minutes and years isn't as easy to explain as many assume.

Time is not absolute, with gravity and velocity affecting how fast it passes, making clocks at different heights or near massive objects measure different durations. Mom battles judge’s order banning ...

Time is not absolute, and Einstein argued that different observers experience the present differently depending on relativity. Top economist Mohamed El-Erian warns the AI bubble will ‘end in tears’ ...