Didn't know this.

'Daylight-saving time is coming three weeks early this year - March 11 - forcing businesses to spring into action to update computer networks.

The Energy Policy Act, signed by President Bush in August 2005, mandates that daylight-saving time fall on the second Sunday of March beginning this year - and end a week later, on the first Sunday of November.'

Techs up against clock with earlier daylight-saving time