Daylight saving time in Mexico - wikipedia Daylight saving time in Mexico Mexico adopted daylight saving time ( Spanish : horario de verano ) nationwide in 1996, even in its tropical regions, because of its increasing economic ties to the United States. Although the United States has changed the schedule for DST beginning in 2007, only the municipalities located less than 20 km from the border have adopted the change. Daylight saving time for Mexico begins the first Sunday of April and ends last Sunday of October ; and is usually referred to as the `` Summer Schedule '' ( Horario de Verano ). Add one hour. Contents 1 Overview 1.1 Baja California 1.2 Sonora 1.3 Island territories 1.4 Quintana Roo 2 References 3 See also Overview In December 2009, Congress gave permission to the municipalities located less than 20 kilometers from the US border to synchronize their time to that of their US counterparts, resulting in these municipalities joining and leaving DST at the same time as the United States, relieving some border problems and confusion. Matamoros, Tamaulipas Reynosa, Tamaulipas Nuevo Laredo, Tamaulipas Anáhuac, Nuevo León Acuña, Coahuila Piedras Negras, Coahuila Ojinaga, Chihuahua Juárez, Chihuahua All of Baja California Apart from the border municipalities ( above ), daylight saving time for Mexico begins the first Sunday of April, and ends last Sunday of October. A bill was proposed by Rep. Francisco Saracho ( PRI ) in September 2015 to reduce confusion by modifying the aforementioned DST start and end dates, observed by the rest of the country, to match those observed by the border municipalities ( above ). The bill was discarded by congress on June 29, 2016. Baja California The state of Baja California ( not Baja California Sur ) has observed daylight saving time from several decades ago and until 1996 was the only Mexican state to observe it. Sonora The state of Sonora has not observed DST since 1998 because of the non-observance of DST by its neighbor Arizona and its important economic ties with that US state. Island territories The Marías Islands and the Revillagigedo Archipelago do not observe DST. The westernmost island of the Revillagigedo Archipelago, Clarion Island, uses UTC − 8 ( PST ) all the time. Quintana Roo The state of Quintana Roo has decided to not observe DST from February 1, 2015. At the same time, they are switching timezone from CST to EST. References ^ Jump up to : `` Hora Oficial en los Estados Unidos Mexicanos ''. Centro Naciona de Metrología. Retrieved 2014 - 05 - 01. Jump up ^ `` Daylight Saving Time in Mexico ''. Time Temperature. Retrieved 2014 - 05 - 01. Jump up ^ `` New Quintana Roo Time Zone Change Set for February 1 ''. Retrieved 2015 - 01 - 22. See also Official web of the Electric Savings Fiduciary ( Fideicomiso del Ahorro de Energia ) of the Mexican Federal Electricity Commission ( 1 ) Daylight saving time by country Time in Mexico Daylight saving time in the Americas North America South America Sovereign states Antigua and Barbuda Argentina Bahamas Barbados Belize Bolivia Brazil Canada Chile Colombia Costa Rica Cuba Dominica Dominican Republic Ecuador El Salvador Grenada Guatemala Guyana Haiti Honduras Jamaica Mexico Nicaragua Panama Paraguay Peru Saint Kitts and Nevis Saint Lucia Saint Vincent and the Grenadines Suriname Trinidad and Tobago United States Uruguay Venezuela Dependencies and other territories Anguilla Aruba Bermuda Bonaire British Virgin Islands Cayman Islands Curaçao Falkland Islands French Guiana Greenland Guadeloupe Martinique Montserrat Puerto Rico Saint Barthélemy Saint Martin Saint Pierre and Miquelon Saba Sint Eustatius Sint Maarten South Georgia and the South Sandwich Islands Turks and Caicos Islands US Virgin Islands Retrieved from `` https://en.wikipedia.org/w/index.php?title=Daylight_saving_time_in_Mexico&oldid=770470265 '' Categories : Time in Mexico Daylight saving time by country Talk Contents About Wikipedia Add links This page was last edited on 15 March 2017, at 16 : 55. Text is available under the Creative Commons Attribution - ShareAlike License ; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia ® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. About Wikipedia

Question: when did daylight savings time start in mexico
Answer: 1996