USA & Canada clocks
Daylight Saving Time dates 2012
Sunday 11 March 2012 2am local time
until Sunday 4 November 2012 2am local time
see: Daylight-Saving-Time.com
for details
USA Standard Time Date schedules
here
Eastern Standard Time is the Eastern Time Zone of the United
States of America (USA) and Canada. Eastern Standard Time (EST) is 5 hours behind Greenwich
Mean Time (GMT-5).
In most states in the USA and in most provinces in Canada, Daylight-Saving
Time (DST) is observed. During DST the
time is shifted forward by 1 hour to EDT; which is 4 hours behind
Greenwich Mean Time (GMT-4).
After the Summer months Eastern Time is shifted
back by 1 hour to US Eastern Standard Time (EST) or (GMT-5).