In the 2005, the United States Congress and then president George W. Bush enacted a law that makes the summer time (daylight savings time) longer. Instead of the first Sunday of April, the law stipulates that the second Sunday of March should be the start of DST, and pushed the end of the DST from the last Sunday of October to the first Sunday of November. So the official calender for summer time is extended by 4 to 5 weeks depending on the year.
Can you really make summer longer by changing the law? Many people still think the weather is quite cold right now, so perhaps the switch to daylight savings time this weekend seem premature. Like it or not, this is yet another Bush legacy that will have long lasting effects on America :-)