Daylight Saving Time in the United States 4/19/2010
In spring, move clocks forward one hour.
In fall, turn clocks backward one hour.
Date Change in 2007
On August 8, 2005, President George W. Bush signed the Energy Policy Act of 2005. This Act changed the time change dates for Daylight Saving Time in the U.S. Beginning in 2007, DST will begin on the second Sunday in March and end the first Sunday in November. The Secretary of Energy will report the impact of this change to Congress. Congress retains the right to resume the 2005 Daylight Saving Time schedule once the Department of Energy study is complete.
When in the Morning?
In the U.S., clocks change at 2:00 a.m. local time. In spring, clocks spring forward from 1:59 a.m. to 3:00 a.m.; in fall, clocks fall back from 1:59 a.m. to 1:00 a.m.
Some U.S. Areas
For the U.S. and its territories, Daylight Saving Time is NOT observed in Hawaii, American Samoa, Guam, Puerto Rico, the Virgin Islands, and Arizona. The Navajo Nation participates in the Daylight Saving Time policy, even in Arizona, due to its large size and location in three states.
A Safety Reminder
Many fire departments encourage people to change the battery in the smoke detector when they change their clocks because Daylight Saving Time provides a convenient reminder. A working smoke detector more than doubles a person's chances of surviving a home fire. More than 90 percent of homes in the United States have smoke detectors, but one-third are estimated to have dead or missing batteries.