Time change 2011
Time change 2011: When does Mexico turn back the clocks?
When does Daylight Saving Time end in Mexico? When do Mexicans turn the clock back one hour?
Daylight Savings Time ends this weekend, the last Sunday in October. Starting last year, Daylight Saving Time has been extended in some communities along the border in order to coincide with the observation of Daylight Saving Time in the United States.
Source : http://www.examiner.com/global-travel-in-national/time-change-2011-when-does-mexico-turn-back-the-clocks