Millions of Americans in 48 states will set their clocks one hour ahead next weekend, launching nearly eight months of longer evening daylight during the spring and summer months. The price? Losing an hour of sleep.

No, daylight saving time isn’t this weekend. But it’s coming soon. On Sunday, March 9, most Americans will be changing their clocks — at least the ones that still require changing — by springing them forward an hour in observance of daylight saving time,