Daylight Savings Time 2009 fall back

Daylight Saving Time (or summertime as it is called in many countries) is a way of getting more light out of the day by advancing clocks by one hour during the summer. During Daylight Saving Time, the sun appears to rise one hour later in the morning, when people are usually asleep anyway, and sets one hour later in the evening, seeming to stretch the day longer.
Windows users should be aware that if your system doesn't have a DST pathch, your computer will move back one hour on Sunday, October 25, you should make sure that they have the latest DST patch.
Also, be sure to check appointments on calendars with your devices.
The reason DST works is because its saves energy due to less artificial light needed during the evening hours—clocks are set one hour ahead during the spring, and one hour back to standard time in the autumn. Many countries observe DST, and many do not.
For 2009, Daylight Saving Time ends at 2:00 a.m. on Sunday, November 1st. So don't forget to set your clocks back one hour before you go to bed on Saturday night (or do it right at 2 a.m., if you'll be partying or will just happen to be awake at that time).
Daylight Saving Time History:
Benjamin Franklin first suggested Daylight Saving Time in 1784, but it was not until World War I, in 1916, when it was adopted by several counties in Europe that initially rejected the idea.
Source news.cnpanyu.com