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Explainer-What is US Daylight Saving Time and When Do Clocks Change?

Daylight saving time, a practice affecting almost 400 million people across North America, is once again in the spotlight as debates over its necessity continue. This twice-a-year ritual of adjusting clocks forward in spring and back in autumn has been ingrained in American, Canadian and Cuban life for more than a century. However, recent legislative proposals and shifting public sentiment are prompting a reevaluation of its relevance in today's society.

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