USA, Canada clocks on Daylight Saving Time until 4 November 2012 at 2am local time
UK / Europe: Clocks on Daylight Saving Time until: Sunday 28 Ocober 2012 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.