Daylight Savings Time ends November 4 at 2 a.m. Don't forget to change your clocks.

The Energy Policy Act of 2005 was passed by Congress and then signed into law by President George W. Bush on August 8, 2005. Under the new law, Daylight Saving Time begins three weeks earlier than previously, on the second Sunday in March. DST is extended by one week to the first Sunday in November. The new start and stop period begins March 2007.

The original House bill would have added two full months, one in the spring and another in the fall. According to some U.S. senators, farmers complained that a two-month extension could adversely affect livestock, and airline officials said it would have complicated scheduling of international flights. So, a compromise was worked out to start DST on the second Sunday in March and end the first Sunday in November.

Enactment of the Energy Policy Act of 2005 did not alter the rights of the states and territories to choose not to observe Daylight Saving Time.

The question remains, however, whether the earlier DST will save additional energy. The California Energy Commission's Demand Analysis Office, has published a report titled The Effect of Early Daylight Saving Time on California Electricity Consumption: A Statistical Analysis, Commission publication # CEC-200-2007-004, published May 2007.

It concludes that, "The extension of Daylight