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why does the united states use daylight savings time why did the united states start using daylight savings time does the united states observe daylight savings time does the united states still use daylight savings time why did the united states start daylight savings time why did the united states adopt daylight savings time does the whole united states have daylight savings time does only the united states have daylight savings time will the united states stop using daylight savings time does all united states have daylight savings time
