What is the history of daylight saving time?
Why do we observe DST, who still supports it and why medical experts believe it’s a bad practice that harms public health.
While the rest of the world prepares for the inevitable time change that will occur this weekend, those who reside in most of Mexico and in at least two regions of the United States remain calm, even though they will not get that extra hour to sleep like the rest of the world.
For decades, in 1966, Arizona opted not to observe daylight saving time, just as Hawaii did then. The Navajo Nation, the largest Indian tribe in the United States whose territory is largely in Arizona, does see the change.
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In Mexico, however, this decision is recent, being implemented after the Time Zone Law, promoted by former president Andrés Manuel López Obrador, which ended the observation of daylight saving time. But some municipalities are still impacted in the border states of Baja California, Chihuahua, Coahuila, Nuevo León and Tamaulipas.
When does the schedule change in 2024?
If you live in a state where daylight saving time is still in effect, the time change will occur on Sunday, November 3. At 2 a.m., clocks will go back one hour until 1 a.m.
Residents of Arizona and Sonora will not have to change their clocks, but those who live in Mexicali, Baja California, would turn their clocks back on November 3 by one hour to stay on the same Pacific Standard time observed in California.
Daylight saving time will be implemented again next year, on March 9, 2025.
Contact reporter Paula Soria by email psoriaaguilar@gannett.com or in X @paula_soriaa.
