British Summer Time
The UK's clocks go forward one hour to British Summer Time (BST) at 01.00 UTC on Sunday 31 March 2013.
As the UK's home of precise time and frequency measurement, NPL provides access to a reliable and trusted source of time.
Our atomic clocks keep UK national, and international time ticking and NPL scientists are developing ways to measure time ever more accurately.
View upcoming Summer Time Dates
Read all our Time Frequently Asked Questions
Find out more about NPL's work on Time
Last Updated: 28 Mar 2013
Created: 28 Mar 2013