Congress changed daylight savings time back in 2005 and the changes will go into effect this weekend! 
"..The change takes effect this year -- on March 11 -- and it has angered airlines, delighted candy makers and sent thousands of technicians scrambling to make sure countless automated systems switch their clocks at the right moment. Unless changed by one method or another, many systems will remain programmed to read the calendar and start daylight saving time on its old date in April, not its new one in March.
It's one thing to arrive an hour late for church on the first day of daylight saving. It's another for a security system to log the wrong time of crucial events, for pilots to misunderstand their takeoff times or international communications components to stop synchronizing. But such scenarios are possible without the fix to vast numbers of the nation's technical systems."
