2007 Daylight Savings Time Changes


Background

This year, Daylight Savings Time (DST) starts earlier than in past years. In the past, most people in the United States would set clocks forward an hour in April and back an hour in October (i.e., Spring Forward; Fall Back). In 2005, Congress passed the Energy Policy Act, which amended the Uniform Time Act of 1966. The change to DST goes into effect this year.

Instead of DST starting on the first Sunday in April, it starts on the second Sunday of March (March 11). In the fall, Daylight Savings will end on the first Sunday in November (November 4) instead of the last Sunday of October.


Brief Summary of Steps

Command to see what your system is set for
~$ sudo zdump -v /etc/localtime | grep 2007

If you see results similar to the following, you should be okay.
/etc/localtime Sun Mar 11 07:59:59 2007 UTC = Sun Mar 11 01:59:59 2007 CST isdst=0 gmtoff=-21600
/etc/localtime Sun Mar 11 08:00:00 2007 UTC = Sun Mar 11 03:00:00 2007 CDT isdst=1 gmtoff=-18000
/etc/localtime Sun Nov 4 06:59:59 2007 UTC = Sun Nov 4 01:59:59 2007 CDT isdst=1 gmtoff=-18000
/etc/localtime Sun Nov 4 07:00:00 2007 UTC = Sun Nov 4 01:00:00 2007 CST isdst=0 gmtoff=-21600


If not your distro may not be up to date or you may have a non-standard setup. If this is the case you will have to update manually.


For The Details

see the article on Linux-Watch at http://www.linux-watch.com/news/NS6300294422.html for more detail.
see the thread on LinuxQuestions at http://www.linuxquestions.org/questions/showthread.php?t=518752 for more detail.