Daylight-saving change could confuse gadgets

On Monday, US President signed an energy bill that will lengthen daylight-saving time by four weeks starting in 2007. The four-week extension could save the equivalent of 100,000 barrels of oil per day in energy use, --raising the possibility of a smaller-scale repeat of Y2K-like problems.
For most computer users, their computers will be updated with new software by then, or configured to connect to network time servers that will know the correct time.
But because not everyone's computer is networked or updated, some glitches could occur, especially in consumer electronics devices that aren't designed to be reprogrammed.