Clock Change Reminder (Mexico ONLY) (Oct 25, 2008)

But for Mexico, it is.

Although the U.S. doesn't return to Standard time until a week after Mexico does at 2am on Oct 26, children get to go out trick or treating while the sun is still shining at 5pm on Halloween day.

On Oct 26, Tijuana, Mexicali, and all parts of Mexico (except Sonora) revert to Standard time at 2am when the clocks go back an hour to 1am. Sonora doesn't observe Daylight time so that it's Northern neighbor Arizona, which never goes on Daylight time either, stays in sync with the 48th state of the Nation.

For a week from Oct 26 to Nov 1, San Diego and Tijuana, as well as El Centro and Mexicali, are out of sync by one hour because the U.S. doesn't change their clocks to Standard time until 2am Nov 2.

On March 8, 2009, the U.S. returns to Daylight time. On April 5, Mexico returns to Daylight time as well.

Many later VCRs, PCs, and clocks have built-in time adjustments that switch automatically to and from Daylight Time. Older machines still use the older dates (first Sunday in April to last Sunday in October) so that they will be out of sync with the U.S. for four or five weeks a year. For those older machines, a solution is to set the machines to Mountain Standard Time for next week, then after the U.S. returns to Standard Time, set the machines to Pacific Standard Time.