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Thursday, February 15, 2007

Daylight Saving Time (DST) changes in 2007

Whats DST?
Daylight Saving Time (DST) is a system of handling the changing amounts of daylight throughout the year. The goal of DST is to maximize the daylight hours available during typical waking hours. By adjusting clocks ahead a standard amount, usually an hour, people can have more daylight available during their typical work day. For example, suppose you wake daily at 7:00 AM. In the spring, the sun rises earlier each day. Instead of waking up at 6:00 AM to take advantage of the daylight, DST observers move their clocks ahead an hour. The effect is that they can continue to wake at 7:00 AM according to the clock and enjoy more daylight. In the fall, people set their clocks back an hour as sunrise happens later each day.

Whats the problem with DST in 2007?
Because of the Energy Policy Act of 2005, the start date and the end date for daylight saving time (DST) in the United States will change in 2007. DST in the United States will start three weeks earlier and will end one week later than in previous years. DST will start at 2:00 A.M. on the second Sunday in March and will end at 2:00 A.M. on the first Sunday in November.

Due to this, many software applications require patches to be installed. I have collected the Patch/Update information related to various software/tools:

1) Microsoft Visual Sourcesafe
2) Microsoft Visual Studio
3) Windows Mobile Update
4) Sun Java
5) Oracle
6) IBM Lotus Notes and Domino
7) Cognos position statement regarding DST readiness

Also found this link, which covers the DST information in detail.

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