<P> By the Energy Policy Act of 2005 , daylight saving time ( DST ) was extended in the United States beginning in 2007 . As from that year , DST begins on the second Sunday of March and ends on the first Sunday of November . In years when April 1 falls on Monday through Wednesday , these changes result in a DST period that is five weeks longer ; in all other years the DST period is instead four weeks longer . In 2008 daylight saving time ended at 2 : 00 a.m. DST ( 0200 ) ( 1 : 00 a.m. ST ) on Sunday , November 2 , and in 2009 it began at 2 : 00 a.m. ( 3 : 00 a.m. DST ) on Sunday , March 8 . Wyoming Senator Michael Enzi and Michigan Representative Fred Upton advocated the extension from October into November especially to allow children to go trick - or - treating in more daylight . </P>
<P> By the Energy Policy Act of 2005 , daylight saving time ( DST ) was extended in the United States beginning in 2007 . As from that year , DST begins on the second Sunday of March and ends on the first Sunday of November . In years when April 1 falls on Monday through Wednesday , these changes result in a DST period that is five weeks longer ; in all other years the DST period is instead four weeks longer . In 2008 daylight saving time ended at 2 : 00 a.m. DST ( 0200 ) ( 1 : 00 a.m. ST ) on Sunday , November 2 , and in 2009 it began at 2 : 00 a.m. ( 3 : 00 a.m. DST ) on Sunday , March 8 . Wyoming Senator Michael Enzi and Michigan Representative Fred Upton advocated the extension from October into November especially to allow children to go trick - or - treating in more daylight . </P>
when did they change daylight savings time to november
when did they change daylight savings time to november
2007
2007