Not only will this weekend's "spring forward" cost us an hour sleep, apparently it costs the U.S. a lot of money too. According to a new study, losing just that one hour will cost the country $434 million!

That number is based on estimated lost productivity and the costs incurred from the increase in heart attacks and the increase in injuries in mining and construction jobs. Huh?

For example, the mining town of Morgantown, West Virginia will be hit the hardest. Changing the time will cost every person in that city $3.38.

The cities with zero impact are in Hawaii and Arizona, the two states that do not participate in Daylight Savings Time.

You can find out how each metropolitan in the U.S. ranks on the "Lost-Hour Economic Index" by clicking here.

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