Change to Daylight Savings Time and impact on your business systems
Business owners - just as in the Y2K crisis, you should run a check of all your time-based business and computer systems to ensure that you have planned for this change in Daylight Savings Time.
Beginning in 2007, daylight saving time (DST) will be extended in the United States. DST will start on March 11, 2007, which is three weeks earlier than usual, and it will end on November 4, 2007, which is one week later than usual.
This results in a new DST period that is four weeks longer than in previous years. Unless certain updates are applied to your computer, the time zone settings for your computer’s system clock may be incorrect during this four-week period. In particular, you must make sure that both your Windows operating system and your calendar programs are updated.