[tz] Ambiguous abbreviations for Australian timezones when daylight savings is in affect

[Clive D.W. Feather]

Tim Parenti said:
> So it seems natural to instead emphasize the exception.  Arizona does this
> by being explicit with the S in its abbreviation.  Australia can do this by
> replacing the S with a D when appropriate.

Please bear in mind that the "D" means nothing to most people in the
English-speaking world - "Daylight Saving" is an American construct that is
both meaningless and not used by the rest of us.

I would actually suggest that the Australian abbreviations be "EST" and
"ESuT" if we were going in that direction. (But I'm still in favour of
status quo.)

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Clive D.W. Feather          | If you lie to the compiler,
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