The Energy Policy Act of 2005 changes the effective dates of Daylight Saving Time (DST) in the United States, Canada, and selected other locations. Beginning in March 2007, DST in affected geographical regions will begin three weeks earlier (2:00 A.M. on the second Sunday in March) and will end one week later (2:00 A.M. on the first Sunday in November) than in previous years.
While the change in daylight saving time applies to U.S. and Canada, the change may affect users based outside of these countries.
- Mexico will not be following the new DST 2007 rules with the U.S. and Canada. Accordingly, systems configured to use U.S. time zones (for example, Pacific Time) will need to change their system configurations to use the new Mexico time zones.
- Companies or organizations with operations, customers, or vendors based in the U.S. or Canada may be affected.
- Companies or organizations that interact or integrate with systems that are based in the U.S. or Canada or rely on date/time calculations may be affected.
- Users in U.S. areas that do not observe DST (see below) but who travel to or interact with people in locations that do follow DST will be affected.
In many scenarios, computers attached to networks are patched on a regular basis, so the new DST rules taking effect won’t have much of an impact on those systems. However, many systems and devices, such as routers, servers, both networked and stand-alone, and/or devices associated with these systems will most likely need to be patched.
In addition, it is not enough to assume that if the servers have the correct time, the database and applications will work. Some applications are ‘system time aware’, and others require their own unique patches. The following scenarios and operations are common and will produce incorrect results, as a consequence of using the time offset by one hour.
- Time format and display
- Time zone name display
- Operations which check whether a particular date is in daylight savings time
- Computations and/or business logic based on daylight savings time, etc.
- Any of the above that run on a system whose time is set to a time zone other than the US time zone, but does computations based on a US time zone.
Stanley Security Solutions is committed to providing you with proactive solutions to these and other potential problems related to the Daylight Savings Time transition.
The steps required in addressing these issues are to Update all Microsoft Windows devices in the system using patches or methods supplied by Microsoft, and then to update the specific manufacturer software.
Stanley Security Solutions has created this site to give you the tools and information you need to ensure that your Stanley Security Solutions equipment complies with the new DST schedule. By clicking on the appropriate product family link below for your Stanley Security Solutions equipment, you will go to a page that gives you:
• Information about how the DST change affects your equipment;
• Printable instructions to make sure your equipment complies with the new DST schedule;
• Where applicable, a software update for you to download and use with your equipment.
Original Letter to customers from Rob Van announcing DST issue
