USA, Canada clocks on Daylight Saving Time until Sunday 3 November 2013 at 2am
local time
UK / Europe: Clocks on Summer Time until Sunday 27 October 2013 at 01:00 (1am) GMT
Greenwich has spent a third of a millennium cracking the conundrum of time.
Since King Charles
II established John Flamsteed as the first Astronomer Royal in 1675. The
opening of the new world and the search for accurate time-keeping to aid
navigation gave the world GMT and the Prime Meridian.