This Sunday, our Southern Baja state leaves Daylight Savings Time at 2:00 am. Do not forget to “Fall Back” your clocks by 1 hour before you go to bed. In most of Mexico, including its capital Mexico City, Daylight Saving Time (DST) runs from the 1st Sunday of April to the last Sunday of October. However, there are several exceptions: The state of Sonora in the North does not change its clocks. The rationale is to stay in sync with the neighboring US state of Arizona, where Mountain Standard Time (MST) is observed all year. In the map below, Sonora is the yellow area on the left. The state of Baja California (North) and many other locations close to the country’s northern border follow the DST schedule of the United States.