Fall back....Spring Forward...
Beginning in 2007, Daylight Saving Time was extended one month and begins for most of the United States at 2 a.m. on the First Sunday of November. The new start and stop dates were set in the Energy Policy Act of 2005.
One of the biggest reasons we change our clocks to Daylight Saving Time (DST) is that it reportedly saves electricity. In general, energy use and the demand for electricity for lighting our homes is directly connected to when we go to bed and when we get up.
Daylight Saving Time (DST) last until 2 a.m. on the Second Sunday in March.