Nov 6, 2022, 2:00 am
In small parts of Mexico
|Long Name:||United Mexican States|
Note: Only some parts of Mexico used DST in 1931.
Forward 1 hour
Apr 1, 1931 - Daylight Saving Time Started
When local standard time was about to reach
Wednesday, April 1, 1931, 12:00:00 midnight clocks were turned forward 1 hour to
Wednesday, April 1, 1931, 1:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on Apr 1, 1931 than the day before. There was more light in the evening.
Back 1 hour
Sep 30, 1931 - Daylight Saving Time Ended
When local daylight time was about to reach
Wednesday, September 30, 1931, 12:00:00 midnight clocks were turned backward 1 hour to
Tuesday, September 29, 1931, 11:00:00 pm local standard time instead.
Sunrise and sunset were about 1 hour earlier on Sep 30, 1931 than the day before. There was more light in the morning.
When Does DST Start and End in Mexico?
- 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 second Sunday in March and ends on the first Sunday in November.
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 1931 (32 in total, 1 where all observe DST, 31 which don't observe DST)
|Aguascalientes||No DST||Guerrero||No DST||Quintana Roo||No DST|
|Baja California||Apr 1 – Sep 30||Hidalgo||No DST||San Luis Potosí||No DST|
|Baja California Sur||No DST||Jalisco||No DST||Sinaloa||No DST|
|Campeche||No DST||Michoacán||No DST||Sonora||No DST|
|Chiapas||No DST||Morelos||No DST||Tabasco||No DST|
|Chihuahua||No DST||México||No DST||Tamaulipas||No DST|
|Ciudad de México||No DST||Nayarit||No DST||Tlaxcala||No DST|
|Coahuila de Zaragoza||No DST||Nuevo León||No DST||Veracruz||No DST|
|Colima||No DST||Oaxaca||No DST||Yucatán||No DST|
|Durango||No DST||Puebla||No DST||Zacatecas||No DST|
|Guanajuato||No DST||Querétaro||No DST|
Daylight Saving Time History in Mexico
- Mexico first observed Daylight Saving Time in 1931.
- Mexico has observed DST for 65 years between 1931 and 2022 (DST in at least one location).
- Previous time with no Daylight Saving Time was 1975.
- See Worldwide DST Statistics