Photo: Extended Daylight Saving Time Not an Energy Saver?

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Bright lights from skyscrapers illuminate midtown Manhattan at dusk in an undated photograph of New York City.

In 2005 the U.S. government moved to extend daylight saving time to help reduce energy use. But after the first year of the extension some studies suggest savings from reduced nighttime electricity consumption are more than offset by other energy demands.

Photograph by Andy Ryan/Getty Images

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