MARINA KOLBE, WORLD NEWS: The arrival of Daylight Saving Time is creating a controversy in Mexico. On Sunday, clocks will be moved forward one hour. CNN's Mexico City bureau chief Harris Whitbeck explains why many people in Mexico don't like the change.</s>HARRIS WHITBECK, CNN CORRESPONDENT (voice-over): The implementation of Daylight Saving Time in Mexico was instituted four years ago without major disruption. This year, the time change has prompted raging controversy. Mexico City's mayor threatened legal action. "We are analyzing the constitutionality of the federal government's decreeing a time change," she says. Sixteen states in the republic have threatened not to spring forward with the rest of the country next Sunday. And in public schools, parents and teachers alike fret about disruptions in children's schedules. "The kids are already accustomed to getting up at a certain time. If they have to get up at a different time, they won't want to study or eat their breakfast," he says. The government says the time change will bring about needed energy conservation and that arguments against it are just political.</s>MAURICIO TOUSSAINT, MEXICAN SUBSECRETARY OF ENERGY (through  translator): The fact that this is an electoral year has made some groups give this a political tinge without having any solid arguments.</s>WHITBECK: Political analysts say it is a controversy that seems ready-made for an opposition looking to discredit the government.</s>SERGIO AGUAYO, POLITICAL ANALYST: The PRD, one particular party, has found a way to blame the government for a bother people feel. And that is not, that it doesn't have any offsetting benefit that people can see.</s>WHITBECK: The opposition says it is simply looking out for the concerns of the people. (on camera): The federal government says future Daylight Savings Time might be up for discussion. But it insists clocks will go forward one hour this Sunday, and there's simply no time to change that now. Harris Whitbeck, CNN, Mexico City.
Time Change Prompts Controversy In Mexico