[tz] Fallback rules?
random832 at fastmail.com
Wed Nov 4 01:14:24 UTC 2015
Alfie John <alfie at fastmail.com> writes:
> Hi TZers,
> Sorry if this has been asked before, but I couldn't find any
> documentation on the rules of what should happen for the following
> Here's the definition for Australia/Brisbane:
> # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
> Rule AQ 1971 only - Oct lastSun 2:00s 1:00 D
> Rule AQ 1972 only - Feb lastSun 2:00s 0 S
> Rule AQ 1989 1991 - Oct lastSun 2:00s 1:00 D
> Rule AQ 1990 1992 - Mar Sun>=1 2:00s 0 S
> Rule Holiday 1992 1993 - Oct lastSun 2:00s 1:00 D
> Rule Holiday 1993 1994 - Mar Sun>=1 2:00s 0 S
> Zone Australia/Brisbane 10:12:08 - LMT 1895
> 10:00 Aus AE%sT 1971
> 10:00 AQ AE%sT
> As the zone ends with AQ, and AQ does not have a "max" ending date, what
> should Australia/Brisbane fall back to after 1992?
Er, there is a spring forward rule in 1993, and a fall back rule in
1994, and it ends on standard time.
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