Dean Hollister wrote:
Dear All,
To confuse things even more, Western Australia is starting daylight
saving for a 3 year trial. The start/stop dates are not uniform, just to
make life harder. The dates are as follows:
First on: 2:00am Dec 3
2007-2008: 2:00am Oct lastSun (ON)
2007-2009: 2:00am Mar lastSun (OFF)
If I've got the zoneinfo rules right, they go something like (sorry if
field formatting doesn't come out properly):
# Western Australia
Zone Australia/Perth 7:43:24 - LMT 1895 Dec
8:00 Aus WST 1943 Jul
8:00 - WST 1974 Oct lastSun 2:00s
8:00 1:00 WST 1975 Mar Sun>=1 2:00s
8:00 - WST 1983 Oct lastSun 2:00s
8:00 1:00 WST 1984 Mar Sun>=1 2:00s
8:00 - WST 1991 Nov 17 2:00s
8:00 1:00 WST 1992 Mar Sun>=1 2:00s
8:00 - WST 2006 Dec 2
8:00 AW WST 2009 Mar lastSun 2:00s
8:00 - WST
# Rule NAME FROM TO TYPE IN ON AT SAVE
LETTER/S
Rule AW 2006 only - Dec 3 2:00s 1:00 -
Rule AW 2007 2008 - Oct lastSun 2:00s 1:00 -
Rule AW 2007 2009 - Mar lastSun 2:00s 0 -
Has anything at this stage been committed to the -STABLE branches for
these changes, or will most need to do them manually?
There has been a lot of discussion on the list lately about this, as a
great portion of the world is going to DST this weekend, much earlier
than the previous "norm". You might glean some insight from the mail
archives.
Here are some other (my non-authoritative) thoughts.
1. If your system is >=6.2, it's possible that the updated zone files
are already installed. Most of the rest of the world's changes were,
anyhow.
2. One way to test is to run `date -v +Nd`, where N is the number of
days until the change. If date returns the wrong zone indicator (in my
case it was CST instead of CDT), then run `tzsetup` as root and try again.
3. If it still returns the wrong indicator, install
/usr/ports/misc/zoneinfo from an up-to-date ports tree, run tzsetup, and
try again.
The gazetted changes/references are at:
http://wa.gov.au/daylightsaving/
It might be worth mentioning that just having 6.2 installed may not be
enough; if the system was upgraded from a lower version, you may still
need to run tzsetup to get ready for DST. This took me by surprise
yesterday; fortunately, no biggie as I have only a few
servers/workstations running FreeBSD.
HTH,
Kevin Kinsey
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