Matthew J. Kotchen

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Why do we — along with 75 other countries — alternate between standard time and daylight time? Although many people believe it has an agricultural provenance, daylight time has always been a policy meant to save energy. As Benjamin Franklin argued, if people moved up their summer schedules by an hour, they could live by “sunshine rather than candles” in the evenings.

Energy conservation was the motivation for daylight time during World Wars I and II and the oil embargo of the 1970s, and it remains so today — even though there has been little scientific evidence to suggest daylight time actually helps us cut back on electricity use.…  Seguir leyendo »