Daylight savings patch for US - Canada 2007

Question

I see that Apple supposedly patched DST for USA-Canada 2007.
However, I went to a tech article that suggested using a
foo$ zdump -v /etc/localtime | grep 2007
command in terminal.
I got the following which indicates that DST is still the old way:
/etc/localtime Sun Apr 1 09:59:59 2007 UTC = Sun Apr 1 01:59:59 2007 PST isdst=0
/etc/localtime Sun Apr 1 10:00:00 2007 UTC = Sun Apr 1 03:00:00 2007 PDT isdst=1
/etc/localtime Sun Oct 28 08:59:59 2007 UTC = Sun Oct 28 01:59:59 2007 PDT isdst=1
/etc/localtime Sun Oct 28 09:00:00 2007 UTC = Sun Oct 28 01:00:00 2007 PST isdst=0
What gives?
Running 10.4.8 with all updates done.

Answer 1

Well I fixed it the hard way - manually doing the following:
The localtime file is actually just an alias to another file, as seen here (line break added for narrower display):
foo$ ls -lah /etc/localtime
lrwxr-xr-x 1 root wheel 37B Jan 8 06:19 /etc/localtime ->
/usr/share/zoneinfo/America/Vancouver
To fix the problem, you need to update the source file:
Go to this nih.gov server and grab the file tzdata2007a.tar.gz. This filename may change over time, as new updates are added to the database. Just copy and paste the FTP URL into Safari to start.
Extract the contents of the archive to a local folder (Stuffit Expander does a fine job if you don't know how); my folder is called tzdata2007a.
In Terminal, cd into that folder and run the following commands. Note that the modifications I'm after are in the file named northamerica. However, some modifications where made to the europe and africa files as well, and the last command, zic backwards, will complain if you don't include them. Here are the commands to run:
foo$ cd /path/to/tzdata2007a
foo$ sudo zic europe
foo$ sudo zic africa
foo$ sudo zic northamerica
foo$ sudo zic backwards
That's it; you're done. Check your results with the original command again:
foo$ zdump -v /etc/localtime | grep 2007
You should now see Mar 11 and Nov 4, instead of the original Apr 1 and Oct 28. Much better!