bww+ at CS.CMU.EDU
Wed Mar 11 17:21:42 UTC 1992
One bogus comment, one real comment, and then some observations ...
It was difficult to find the actual rules! I know this is probably
one of your prime motivations in trying to clean it up, but running
it through (the equivalent of) "sed /^#/d | cat -s" made things much
easier for a human to parse. (So much for the bogus comment.)
The real comment is that I believe ...
Rule AS 1991 max - Mar Sun>=1 3:00 0 -
... to be wrong. Recent correspondence with a friend in Adelaide
contained the following exchange:
Due to the Adelaide Festival, South Australia delays setting
back our clocks for a few weeks. So, we're now 0.5 hours
*later* than Sydney ... can you believe it?
So, I believe the ...
Rule AS 1986 1990 - Mar Sun<=21 3:00 0 -
... rule should actually go to the "max" (or, at least extending to
include 1992, although I'm not as certain about 1991).
And now some observations which are eminently ignorable.
* Perhaps it might be clearer to add "Rule" sets for Australia/West
and Australia/Queensland just like the other states with at least
some daylight time.
* Some "only" rules use explicit dates, while others use generic
specifications. For example,
Rule AT 1972 only - Feb lastSun 3:00 0 -
Rule NSW 1982 only - Apr 4 3:00 0 -
Perhaps it might be better to do one or the other consistently.
(The shift invariably occurs on a Sunday morning.)
* The current Australia zone names are:
LHI Queensland Victoria
North South West
NSW Tasmania Yancowinna
"LHI" (Lord Howe Island) and "Yancowinna" are special cases, but the
others are somewhat inconsistent and may be better rendered as:
However, you probably want to stay under 14 characters, in which case
I would propose:
NSW QLD TAS WA
NT SA VIC
Also, linking "NSW" to "ACT" (Australian-Capital-Territory) might be
* Even the current rule-set names are a little inconsistent. We have
"AS", "AT", and "AV", but then "NSW". If you subscribe to the naming
suggestion above, it might be nice to call the ``Australia/FOO'' rule
set simply ``FOO''.
Anyway, just some suggestions. Others may have better ones.
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