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does the united states still use daylight savings time does the united states still have daylight savings time does the united states still observe daylight savings time does the united states still do daylight savings time does the united states have daylight savings time does the united states observe daylight savings time why does the united states use daylight savings time does the whole united states have daylight savings time does only the united states have daylight savings time does the entire united states observe daylight savings time
