Is it time to redefine the second? Optical clocks can reach accuracies at the level of 10-18 , “which is a number so accurate that if the clock started running at the big bang, by now it will ...

While our watches and oven displays quickly adjust, our bodies do not – and scientists say the abrupt change is bad for us.

The clocks change on Sunday and, while daylight saving time might be thought of a quirky ... experts suggest we prepare ourselves now. For World Sleep Day, we ask a data scientist exactly how ...