USA & Canada clocks
Daylight Saving Time dates 2011
Sunday 13 March 2011 2am local time
until Sunday 6 November 2011 2am local time
see: Daylight-Saving-Time.com
for details
USA Standard Time Date schedules
here
The Eastern part of Ontario
(most of Ontario and all the major towns & cities) lie in the
Eastern Time Zone, which is 5 hours behind
Greenwich Mean Time (GMT-5) and the Western part of Ontario, west of 90° W longitude, are in the
Central Time Zone, which is 6 hours behind Greenwich Mean time (GMT-6).
After the Summer months the time is shifted back by 1 hour resulting in the normal time difference behind GMT.