Flag for Mexico Time Change 2012 in Mexico

Next change:
Oct
29
1 hour Back

Oct 29, 2017, 2:00 am

Country: Mexico

Long Name: United Mexican States

Abbreviations: MX, MEX

Capital: Mexico City

Time Zones: 3

Dial Code: +52

Note: Some regions of Mexico use a different period of DST than shown below.

Apr 1

Forward 1 hour

Apr 1, 2012 - Daylight Saving Time Started

When local standard time was about to reach
Sunday, April 1, 2012, 2:00:00 am clocks were turned forward 1 hour to
Sunday, April 1, 2012, 3:00:00 am local daylight time instead.

Sunrise and sunset were about 1 hour later on Apr 1, 2012 than the day before. There was more light in the evening.

Also called Spring Forward, Summer Time, and Daylight Savings Time.

Oct 28

Back 1 hour

Oct 28, 2012 - Daylight Saving Time Ended

When local daylight time was about to reach
Sunday, October 28, 2012, 2:00:00 am clocks were turned backward 1 hour to
Sunday, October 28, 2012, 1:00:00 am local standard time instead.

Sunrise and sunset were about 1 hour earlier on Oct 28, 2012 than the day before. There was more light in the morning.

Also called Fall Back and Winter Time.

Other years: 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2017

When Does DST Start and End in Mexico?

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 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.
  • Quintana Roo has opted out of following the country's DST regime. Following the establishment of its own time zone in 2015, Mexico's easternmost state is observing EST year-round. In the map below, Quintana Roo is the yellow area on the right.
  • The state of Baja California and many other locations close to the country's northern border follow the DST schedule of the United States. This includes cities like Tijuana, Ciudad Juárez, and Ojinaga (please see cities marked “north” in the table below). Here, the DST period starts on the 2nd Sunday in March and ends on the 1st Sunday in November.
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Daylight Saving Time Info

The states of Sonora (yellow area on the left) and Quintana Roo (yellow area on the right) do not observe DST.

DST in States and Federal Districts in Mexico in 2012 (32 in total, 31 where all observe DST, 1 which doesn't observe DST)

AguascalientesApr 1 - Oct 28GuanajuatoApr 1 - Oct 28QuerétaroApr 1 - Oct 28
Baja CaliforniaMar 11 - Nov 4GuerreroApr 1 - Oct 28Quintana RooApr 1 - Oct 28
Baja California SurApr 1 - Oct 28HidalgoApr 1 - Oct 28San Luis PotosíApr 1 - Oct 28
CampecheApr 1 - Oct 28JaliscoApr 1 - Oct 28SinaloaApr 1 - Oct 28
ChiapasApr 1 - Oct 28MichoacánApr 1 - Oct 28SonoraNo DST
Chihuahua (north)Mar 11 - Nov 4MorelosApr 1 - Oct 28TabascoApr 1 - Oct 28
ChihuahuaApr 1 - Oct 28MéxicoApr 1 - Oct 28Tamaulipas (north)Mar 11 - Nov 4
Ciudad de MéxicoApr 1 - Oct 28NayaritApr 1 - Oct 28TamaulipasApr 1 - Oct 28
Coahuila de Zaragoza (north)Mar 11 - Nov 4Nuevo León (north)Mar 11 - Nov 4TlaxcalaApr 1 - Oct 28
Coahuila de ZaragozaApr 1 - Oct 28Nuevo LeónApr 1 - Oct 28VeracruzApr 1 - Oct 28
ColimaApr 1 - Oct 28OaxacaApr 1 - Oct 28YucatánApr 1 - Oct 28
DurangoApr 1 - Oct 28PueblaApr 1 - Oct 28ZacatecasApr 1 - Oct 28

Daylight Saving Time History in Mexico

  • Mexico first observed Daylight Saving Time in 1931.
  • Mexico has observed DST for 60 years between 1931 and 2017 (DST in at least one location).
  • Previous time with no Daylight Saving Time was 1975.
  • See Worldwide DST Statistics

Baja California Pioneered DST

The state of Baja California introduced seasonal clock changes in 1931, remaining the only area in Mexico with a DST schedule for 65 years. In the rest of the country, DST was introduced in 1996.