Chinese scientists create clock so precise it could redefine second - Optical clock measures time using light emitted by ...

This also means British clocks will soon spring forward, bringing us into British Summer Time (BST). The annual change is set to take place at 1am on the final Sunday of March, which this year falls ...

To find out how clock accuracy is verified and which reference is used for comparison, we visited the Belarusian State Institute of Metrology (BelGIM), where most of the national standards are kept.

The final Sunday in March will mark the beginning of British Summer Time.

"The period when the clocks are 1 hour ahead is called British Summer Time (BST). There’s more daylight in the evenings and less in the mornings (sometimes called Daylight Saving Time). When the ...