USA & Canada clocks
Daylight Saving Time dates 2013
Sunday 10 March 2013 2am local time
until Sunday 3 November 2013 2am local time
USA and Canada Standard Time Date schedules
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 Eastern Standard Time (EST) or (GMT-5). Eastern
Standard Time (EST) is 5 hours behind Greenwich Mean Time (GMT-5).