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
In most provinces in Canada, Daylight-Saving
Time (DST) is observed. During DST the
time is shifted forward by 1 hour to ADT; which is 3 hours behind Greenwich Mean Time (GMT-3).
After the Summer months Atlantic Time is shifted
back by 1 hour to Atlantic Standard Time (AST) or (GMT-4).