Daylight Saving Time is hot garbage
is a typical article you can expect to read this weekend
My own dislike of DST was boosted when I worked on calendar software at Cozi.
We learned the hard way that we needed to test our latest software
ahead of both the start and end of DST each year.
That's trickier than you might think.
Setting the computer's clock forward a couple of weeks,
past the change of DST, is one thing;
getting the changed time to last for more than a few minutes is another.
Most computers aggressively sync their clocks to a network time server,
which can be tricky to …continue.
can't handle the new Daylight Savings Time rules in the U.S.
The Date() function returns a value that is off by an hour
if the system time is between the second Sunday of March
and the first Sunday of April.
More at the Cozi Tech Blog.
Update 2008/03/14: Mea culpa.
This is not a widespread problem.
It is caused by the presence of set TZ=PST8PDT
in my C:\AutoExec.bat.
Per KB932590, the existence of the TZ environment variable
will cause the CRT to use the old DST rules.
(I can't remember why I set TZ several years ago.
It's part of the accumulated mess of …continue.