Re: [tz] Ambiguous abbreviations for Australian timezones when daylight savings is in affect [SEC=UNCLASSIFIED]

but I'd prefer to get a concensus as to when the D/S abbreviations came into more promenant usage, if indeed the D/D abbreviations were ever more commonly used.

I don't see this is a fact that the TZ DB cares about, e.g. I see no evidence the code SET had been in use for time in Sweden: ftp://ftp.iana.org/tz/data/europe 1:00:14 SET Swedish (1879-1899)* Changing abbreviations on a year basis requires much more research. Yearly adjusted : people need more time to decode an acronym Not-yearly adjusted: people understand acronyms for past times as they do for current. -- Tobias Conradi Rheinsberger Str. 18 10115 Berlin Germany http://tobiasconradi.com