I Novell Customers: Changing Daylight Saving Time in 2007


Novell Customers: Changing Daylight Saving Time in 2007


The Energy Policy Act of 2005 mandates that the United States and Canada change the start and end dates of daylight saving time starting in 2007. Clocks will be set ahead one hour on the second Sunday of March instead of the current first Sunday of April. Clocks will be set back one hour on the first Sunday in November, rather than the last Sunday of October. This will make electronic clocks that had pre-programmed dates for adjusting to daylight saving time obsolete and will require updates to computer operating systems.

Daylight Saving Time Changes
Previously DST began: In 2007 DST will begin: Previous DST ended: In 2007 DST will end:
First Sunday of April Second Sunday of March Last Sunday of October First Sunday of November
Would have been: April 1, 2007 Will now be: March 11, 2007 Would have been: October 28, 2007 Will now be: November 4, 2007

These changes apply to most of the United States (except Arizona, Hawaii, Puerto Rico, the U.S. Virgin Islands, and American Samoa) and Canada. Mexico will not be adopting the new DST. However with our global economy, it is likely that residents of most of the world will also be affected, if indirectly. Here are some considerations:

  • If you live in a part of the U.S. that does not observe DST, you will still be affected if you do business with those who are adopting the change, or if you travel.
  • If you do business with companies in Mexico and your systems are configured to use U.S. time zones, you'll need to change your system configurations to the new Mexico time zones.
  • If your company has suppliers, customers, sales personnel, fulfillment houses, etc., in the United States or Canada, your workflow may be disrupted.

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