Congress decided in 2005 to extend the period of daylight-saving time by three weeks in spring and one in the fall, reasoning that providing more daylight in the early evening would reduce energy use. However, the shift could cause trouble with software set to automatically advance its clock by an hour on the old date, the first Sunday in April, and not on the new date, the second Sunday in March.
“There has been a great deal of speculation of what the impact could be,” said M3 Sweatt, chief of staff of Microsoft’s customer service team. “For most people, the most apparent issue is that meetings and reminders may appear to be off by one hour.”
But Microsoft may be downplaying the risk. Some say those companies that don’t pay full attention to the issue are in for a rude awakening.