About Australasia New Zeland DST
kre at munnari.OZ.AU
Thu Aug 23 08:47:09 UTC 2007
Date: Thu, 23 Aug 2007 10:10:25 +0200
From: Stefano Scarponi <stefano.scarponi at it.ibm.com>
Message-ID: <OF7BE5837E.D4DE1FAE-ONC1257340.002ADB22-C1257340.002CD6DE at it.ibm.com>
| What I notice is that into this link:
| it is stated:
| "From this year, Daylight Saving will run for a period of 27 weeks. It now
| commences from the last Sunday in September, when 2.00am becomes 3.00am,
| and ends on the first Sunday in April the following year, when 3.00am
| becomes 2.00am.
That is correct.
| Instead into the Australasia table :
| Rule NZ 2008 max - Apr Sun>=1 2:00s 0 S
| instead of 3:00 ...
Not instead of, but "another way of writing". When the above text says ..
"when 3.00am becomes 2.00am" it obviously means that 03:00 summer time
turns into 02:00 standard time (which is correct). In the TZ data, the
authors of that rule chose to use "2:00s" - the "s" indicates standard
time, instead of wallclock time. That is, Summer Time ends at 02:00
standard time (which is correct, and also was, very briefly, 03:00 Summer
time, just before the change back).
| so can please someone told me at what time is supposed to start the April
| DST on New Zealand?
It is what both of the above say, 02:00 standard time, or 03:00 wallclock
time - but of course, that's when summer time ends, not when it starts
(Australia and NZ are in the Southern Hemisphere after all, it is summer
in January, not July...)
More information about the tz