Prodded by a note from Bradley White on Queensland abandoning DST, after a review of the last year-and-a-half's worth of correspondence, and having mulled things over in the bathtub, the attached is the best I can do on what Australasia is like at the moment. There's something here to offend everyone; I'm eager for suggestions. --ado : To unbundle, sh this file echo file 'australasia' >&2 cat >'australasia' <<'End of australasia' # @(#)australasia 7.8 ############################################################################### # Australia # From John Mackin (March 6, 1991): # We in Australia have _never_ referred to DST as `daylight' time. # It is called `summer' time. Now by a happy coincidence, `summer' # and `standard' happen to start with the same letter; hence, the # abbreviation does _not_ change... # The legislation does not actually define abbreviations, at least # in this State, but the abbreviation is just commonly taken to be the # initials of the phrase, and the legislation here uniformly uses # the phrase `summer time' and does not use the phrase `daylight # time'. # Announcers on the Commonwealth radio network, the ABC (for Australian # Broadcasting Commission), use the phrases `Eastern Standard Time' # or `Eastern Summer Time'. (Note, though, that as I say in the # current australasia file, there is really no such thing.) Announcers # on its overseas service, Radio Australia, use the same phrases # prefixed by the word `Australian' when referring to local times; # time announcements on that service, naturally enough, are made in UTC. # From Arthur David Olson (March 8 1992): # Given the above, what's used below year-round is: # CST for any place operating at a GMTOFF of 9:30 # WST for any place operating at a GMTOFF of 8:00 # EST for any place operating at a GMTOFF of 10:00 # From George Shepherd via Simon Woodhead via Robert Elz (March 6, 1991): # # The NORTHERN TERRITORY.. [ Courtesy N.T. Dept of the Chief Minister ] # # [ Nov 1990 ] # # N.T. have never utilised any DST due to sub-tropical/tropical location. # ... # Zone Australia/North 9:30 - CST # From Bradley White (March 4, 1991): # A recent excerpt from an Australian newspaper... # the Northern Territory do[es] not have daylight saving. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Australia/North 9:30 - CST # From George Shepherd via Simon Woodhead via Robert Elz (March 6, 1991): # # The state of WESTERN AUSTRALIA.. [ Courtesy W.A. dept Premier+Cabinet ] # # [ Nov 1990 ] # # W.A. suffers from a great deal of public and political opposition to # # DST in principle. A bill is brought before parliament in most years, but # # usually defeated either in the upper house, or in party caucus # # before reaching parliament. # ... # Zone Australia/West 8:00 AW %sST # ... # Rule AW 1974 only - Oct lastSun 2:00 1:00 D # Rule AW 1975 only - Mar Sun>=1 3:00 0 W # Rule AW 1983 only - Oct lastSun 2:00 1:00 D # Rule AW 1984 only - Mar Sun>=1 3:00 0 W # From Bradley White (March 4, 1991): # A recent excerpt from an Australian newspaper... # Western Australia...do[es] not have daylight saving. # From John D. Newman via Bradley White (November 2, 1991): # Western Australia is still on "winter time". Some DH in Sydney # rang me at home a few days ago at 6.00am. (He had just arrived at # work at 9.00am.) # W.A. is switching to Summer Time on Nov 17th just to confuse # everybody again. # From Arthur David Olson (March 8, 1992): # The 1992 ending date below is a best guess; # it matches what was used in the past. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Australia/West 8:00 - WST 1974 Oct lastSun 2:00 8:00 1:00 WST 1975 Mar Sun>=1 3:00 8:00 - WST 1983 Oct lastSun 2:00 8:00 1:00 WST 1984 Mar Sun>=1 3:00 8:00 - WST 1991 Nov 17 2:00 8:00 1:00 WST 1992 Mar Sun>=1 3:00 8:00 - WST # From George Shepherd via Simon Woodhead via Robert Elz (March 6, 1991): # # The state of QUEENSLAND.. [ Courtesy Qld. Dept Premier Econ&Trade Devel ] # # [ Dec 1990 ] # ... # Zone Australia/Queensland 10:00 AQ %sST # ... # Rule AQ 1971 only - Oct lastSun 2:00 1:00 D # Rule AQ 1972 only - Feb lastSun 3:00 0 E # Rule AQ 1989 max - Oct lastSun 2:00 1:00 D # Rule AQ 1990 max - Mar Sun>=1 3:00 0 E # From Bradley White (December 24, 1989): # "Australia/Queensland" now observes daylight time (i.e. from # October 1989). # From Bradley White (March 4, 1991): # A recent excerpt from an Australian newspaper... # ...Queensland...[has] agreed to end daylight saving # at 3am tomorrow (March 3)... # From John Mackin (March 6, 1991): # I can certainly confirm for my part that Daylight Saving in NSW did in fact # end on Sunday, 3 March. I don't know at what hour, though. (It surprised # me.) # From Bradley White (March 8, 1992): # ...there was recently a referendum in Queensland which resulted # in the experimental daylight saving system being abandoned. So, ... # ... # Rule QLD 1989 1991 - Oct lastSun 2:00 1:00 D # Rule QLD 1990 1992 - Mar Sun>=1 3:00 0 S # ... # From Arthur David Olson (March 8, 1992): # Here is the union of the 1971/1972 change and the 1989-1992 changes. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Australia/Queensland 10:00 - EST 1971 Oct lastSun 2:00 10:00 1:00 EST 1972 Feb lastSun 3:00 10:00 - EST 1989 Oct lastSun 2:00 10:00 1:00 EST 1990 Mar Sun>=1 3:00 10:00 - EST 1990 Oct lastSun 2:00 10:00 1:00 EST 1991 Mar Sun>=1 3:00 10:00 - EST 1991 Oct lastSun 2:00 10:00 1:00 EST 1992 Mar Sun>=1 3:00 10:00 - EST # From Arthur David Olson (March 8, 1992): # The rules from version 7.1 follow. # There are lots of differences between these rules and # the Shepherd et al. rules. Since the Shepherd et al. rules # and Bradley White's newspaper article are in agreement on # current DST ending dates, no worries. # # Rule Oz 1971 1985 - Oct lastSun 2:00 1:00 - # Rule Oz 1986 max - Oct Sun<=24 2:00 1:00 - # Rule Oz 1972 only - Feb 27 3:00 0 - # Rule Oz 1973 1986 - Mar Sun>=1 3:00 0 - # Rule Oz 1987 max - Mar Sun<=21 3:00 0 - # Zone Australia/Tasmania 10:00 Oz EST # Zone Australia/South 9:30 Oz CST # Zone Australia/Victoria 10:00 Oz EST 1985 Oct lastSun 2:00 # 10:00 1:00 EST 1986 Mar Sun<=21 3:00 # 10:00 Oz EST # From Robert Elz (March 6, 1991): # I believe that the current start date for DST is "lastSun" in Oct... # that changed Oct 89. That is, we're back to the # original rule, and that rule currently applies in all the states # that have dst, incl Qld. (Certainly it was true in Vic). # The file I'm including says that happened in 1988, I think # that's incorrect, but I'm not 100% certain. # From Bradley White (March 4, 1991): # A recent excerpt from an Australian newspaper... # ...South Australia...[has] agreed to end daylight saving # at 3am tomorrow (March 3)... # From George Shepherd via Simon Woodhead via Robert Elz (March 6, 1991): # # The state of SOUTH AUSTRALIA....[ Courtesy of S.A. Dept of Labour ] # # [ Nov 1990 ] # ... # Zone Australia/South 9:30 AS %sST # ... # Rule AS 1971 max - Oct lastSun 2:00 1:00 D # Rule AS 1972 1985 - Mar Sun>=1 3:00 0 C # Rule AS 1986 1990 - Mar Sun<=21 3:00 0 C # Rule AS 1991 max - Mar Sun>=1 3:00 0 C # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule AS 1971 max - Oct lastSun 2:00 1:00 - Rule AS 1972 1985 - Mar Sun>=1 3:00 0 - Rule AS 1986 1990 - Mar Sun<=21 3:00 0 - Rule AS 1991 max - Mar Sun>=1 3:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Australia/South 9:30 AS CST # From Bradley White (March 4, 1991): # A recent excerpt from an Australian newspaper... # ...Tasmania will revert to Australian Eastern Standard Time on March 31... # From George Shepherd via Simon Woodhead via Robert Elz (March 6, 1991): # # The state of TASMANIA.. [Courtesy Tasmanian Dept of Premier + Cabinet ] # # [ Nov 1990 ] # ... # Zone Australia/Tasmania 10:00 AT %sST # ... # Rule AT 1967 only - Oct Sun>=1 2:00 1:00 D # Rule AT 1968 only - Mar lastSun 3:00 0 E # Rule AT 1968 1985 - Oct lastSun 2:00 1:00 D # Rule AT 1969 1971 - Mar Sun>=8 3:00 0 E # Rule AT 1972 only - Feb lastSun 3:00 0 E # Rule AT 1973 1981 - Mar Sun>=1 3:00 0 E # Rule AT 1982 1983 - Mar lastSun 3:00 0 E # Rule AT 1984 1986 - Mar Sun>=1 3:00 0 E # Rule AT 1986 only - Oct Sun>=15 2:00 1:00 D # Rule AT 1987 1990 - Mar Sun>=15 3:00 0 E # Rule AT 1987 only - Oct Sun>=22 2:00 1:00 D # Rule AT 1988 1990 - Oct lastSun 2:00 1:00 D # Rule AT 1991 max - Oct Sun>=1 2:00 1:00 D # Rule AT 1991 max - Mar lastSun 3:00 0 E # From Bill Hart via Alexander Dupuy and Guy Harris (October 10, 1991): # My state Government in there eagerness to get a few more bucks for the # tourist industry industry decided to change the daylight savings times # yet again (we now have almost 6 months per year)... # ... # Rule Oz 1986 1990 - Oct Sun<=24 2:00 1:00 - # Rule Oz 1991 max - Oct Sun>=1 2:00 1:00 - # ... # Rule Oz 1987 1990 - Mar Sun<=21 3:00 0 - # Rule Oz 1991 max - Mar Sun<=31 3:00 0 - # From Bill Hart via Guy Harris (October 10, 1991): # Oh yes, the new daylight savings rules are uniquely tasmanian, we have # 6 weeks a year now when we are out of sync with the rest of Australia # (but nothing new about that). # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule AT 1967 only - Oct Sun>=1 2:00 1:00 - Rule AT 1968 only - Mar lastSun 3:00 0 - Rule AT 1968 1985 - Oct lastSun 2:00 1:00 - Rule AT 1969 1971 - Mar Sun>=8 3:00 0 - Rule AT 1972 only - Feb lastSun 3:00 0 - Rule AT 1973 1981 - Mar Sun>=1 3:00 0 - Rule AT 1982 1983 - Mar lastSun 3:00 0 - Rule AT 1984 1986 - Mar Sun>=1 3:00 0 - Rule AT 1986 only - Oct Sun>=15 2:00 1:00 - Rule AT 1987 1990 - Mar Sun>=15 3:00 0 - Rule AT 1987 only - Oct Sun>=22 2:00 1:00 - Rule AT 1988 1990 - Oct lastSun 2:00 1:00 - Rule AT 1991 max - Oct Sun>=1 2:00 1:00 - Rule AT 1991 max - Mar lastSun 3:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Australia/Tasmania 10:00 AT EST # From Bradley White (March 4, 1991): # A recent excerpt from an Australian newspaper... # ...Victoria...[has] agreed to end daylight saving at 3am tomorrow (March 3)... # From George Shepherd via Simon Woodhead via Robert Elz (March 6, 1991): # # The state of VICTORIA.. [ Courtesy of Vic. Dept of Premier + Cabinet ] # # [ Nov 1990 ] # ... # Zone Australia/Victoria 10:00 AV %sST # ... # Rule AV 1971 1985 - Oct lastSun 2:00 1:00 D # Rule AV 1972 only - Feb lastSun 3:00 0 E # Rule AV 1973 1985 - Mar Sun>=1 3:00 0 E # Rule AV 1986 1990 - Mar Sun>=15 3:00 0 E # Rule AV 1986 1987 - Oct Sun>=15 2:00 1:00 D # Rule AV 1988 max - Oct lastSun 2:00 1:00 D # Rule AV 1991 max - Mar Sun>=1 3:00 0 E # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule AV 1971 1985 - Oct lastSun 2:00 1:00 - Rule AV 1972 only - Feb lastSun 3:00 0 - Rule AV 1973 1985 - Mar Sun>=1 3:00 0 - Rule AV 1986 1990 - Mar Sun>=15 3:00 0 - Rule AV 1986 1987 - Oct Sun>=15 2:00 1:00 - Rule AV 1988 max - Oct lastSun 2:00 1:00 - Rule AV 1991 max - Mar Sun>=1 3:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Australia/Victoria 10:00 AV EST # From Arthur David Olson: # New South Wales and subjurisdictions have their own ideas of a fun time. # Based on law library research by John Mackin (john@basser.cs.su.oz), # who notes: # In Australia, time is not legislated federally, but rather by the # individual states. Thus, while such terms as ``Eastern Standard Time'' # [I mean, of course, Australian EST, not any other kind] are in common # use, _they have NO REAL MEANING_, as they are not defined in the # legislation. This is very important to understand. # I have researched New South Wales time only... # From Dave Davey (March 3, 1990): # Rule NSW 1988 only - Mar Sun>=1 3:00 0 - # Rule NSW 1989 only - Mar Sun<=21 3:00 0 - # From Bradley White (March 4, 1991): # A recent excerpt from an Australian newspaper... # NSW...[has] agreed to end daylight saving at 3am tomorrow (March 3)... # From George Shepherd via Simon Woodhead via Robert Elz (March 6, 1991): # # The state of NEW SOUTH WALES.. [confirmed by Attorney General's Dept N.S.W] # # [ Dec 1990 ] # ... # Rule AN 1988 1989 - Mar Sun<=21 3:00 0 E # ... # From John Mackin (March 9, 1991) # I have confirmed the accuracy of the historical data for NSW in the # file Robert forwarded # From Arthur David Olson (March 8, 1992): # Sources differ on whether DST ended March 6 or March 20 in 1988; # March 20 (the "confirmed" date) is used below. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule NSW 1971 1985 - Oct lastSun 2:00 1:00 - Rule NSW 1972 only - Feb lastSun 3:00 0 - Rule NSW 1973 1981 - Mar Sun>=1 3:00 0 - Rule NSW 1982 only - Apr 4 3:00 0 - Rule NSW 1983 1985 - Mar Sun>=1 3:00 0 - Rule NSW 1986 only - Mar 16 3:00 0 - Rule NSW 1986 only - Oct 19 2:00 1:00 - Rule NSW 1987 only - Mar 15 3:00 0 - Rule NSW 1987 max - Oct lastSun 2:00 1:00 - # Rule NSW 1988 only - Mar Sun>=1 3:00 0 - # Rule NSW 1989 only - Mar Sun<=21 3:00 0 - Rule NSW 1988 1989 - Mar Sun<=21 3:00 0 - # Rule NSW 1990 max - Mar Sun>=1 3:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Australia/NSW 10:00 NSW EST # From John Basser (January 4, 1989): # `Broken Hill' means the County of Yancowinna. # From George Shepherd via Simon Woodhead via Robert Elz (March 6, 1991): # # YANCOWINNA.. [ Confirmation courtesy of Broken Hill Postmaster ] # # [ Dec 1990 ] # ... # # Yancowinna uses Central Standard Time, despite it's location on the # # New South Wales side of the S.A. border. Most business and social dealings # # are with CST zones, therefore CST is legislated by local government # # although the switch to Summer Time occurs in line with N.S.W. There have # # been years when this did not apply, but the historical data is not # # presently available. # Zone Australia/Yancowinna 9:30 AY %sST # ... # Rule AY 1971 1985 - Oct lastSun 2:00 1:00 D # Rule AY 1972 only - Feb lastSun 3:00 0 C # [followed by other Rules] Zone Australia/Yancowinna 9:30 NSW CST # From George Shepherd via Simon Woodhead via Robert Elz (March 6, 1991): # LHI... [ Courtesy of Pauline Van Winsen.. pauline@Aus ] # [ Dec 1990 ] # Lord Howe Island is located off the New South Wales coast, and is half an # hour ahead of NSW time. Zone Australia/LHI 10:30 NSW ??? ############################################################################### # New Zealand # New Zealand, from Elz' asia 1.1 # Elz says "no guarantees" # From Mark Davies (October 3, 1990): # the 1989/90 year was a trial of an extended "daylight saving" period. # This trial was deemed successful and the extended period adopted for # subsequent years (with the addition of a further week at the start). # source -- phone call to Ministry of Internal Affairs Head Office. # From George Shepherd via Simon Woodhead via Robert Elz (March 6, 1991): # # The Country of New Zealand (Australia's east island -) Gee they hate that! # # or is Australia the west island of N.Z. # # [ courtesy of Geoff Tribble.. Geofft@Aus.. Auckland N.Z. ] # # [ Nov 1990 ] # ... # Rule NZ 1974 1988 - Oct lastSun 2:00 1:00 D # Rule NZ 1989 max - Oct Sun>=1 2:00 1:00 D # Rule NZ 1975 1989 - Mar Sun>=1 3:00 0 S # Rule NZ 1990 max - Mar lastSun 3:00 0 S # ... # Zone NZ 12:00 NZ NZ%sT # New Zealand # Zone NZ-CHAT 12:45 - NZ-CHAT # Chatham Island # From Arthur David Olson (March 8, 1992): # The below uses the Davies October 8 values for the start of DST in 1989 # rather than the October 1 value. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule NZ 1974 1988 - Oct lastSun 2:00 1:00 D # Rule NZ 1989 max - Oct Sun>=1 2:00 1:00 D Rule NZ 1989 only - Oct 8 2:00 1:00 D # Rule NZ 1990 max - Oct Sun>=1 2:00 1:00 D # Rule NZ 1975 1989 - Mar Sun>=1 3:00 0 S Rule NZ 1990 max - Mar Sun>=15 3:00 0 S # Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL] Zone NZ 12:00 NZ NZ%sT # New Zealand Zone NZ-CHAT 12:45 - NZ-CHAT # Chatham Island End of australasia exit
ado, 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 - -v- 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: New-South-Wales Tasmania Northern-Territory Victoria Queensland Western-Australia South-Australia 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 useful. * 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. Brad
participants (2)
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ado -
Bradley White