The Mexican state of Quintana Roo, which includes Cancun and Cozumel, is planning to change to Eastern Standard Time Zone effective February 1, 2015. The state will set its clocks ahead one hour at 3 a.m. This change will result in local destination times for arriving and departing flights being moved one hour forward. Domestic U.S. departure, arrival and connection times to and from Cancun and Cozumel will not change.
At this time, the change impacts flights from February 1, 2015 to April 4, 2015. Airlines are submitting schedule changes over the next week. Check with your airline for any changes in your schedule before you depart.
Have a fantastic time and Happy Planning!