Hi,
Please file a bug, that will prompt a more detailed investigation.
Thanks, Roger
On 9/10/12 2:34 AM, Zubin Kavarana wrote:
Clearly the JDK is making stuff up by changing to max if the last date
is 2038. That is dubious, as you've shown the DST dates diverge post
2038 from the real ones.
I totally agree, IMHO this is a bug in the JDKs.
In my opinion, you shouldn't need to have DST information that far in
the future anyway. Its almost certain to change as governments change
the rules over time. Perhaps your application should be representing
the date using LocalDate rather than DateTime, that way the far future
DST doesn't matter. In any case, any future DST transitions are always
estimates.
At this point since the application uses both java.util.Calendar and Joda
I'd like them to give consistent results while I migrate from one
style to another, DST included.
The need to have DST information that far in the future is subjective.
Agreed that DST is volatile, but ultimately the same database gives
information till 'max' for some zones and till certain years for others
so it's got multiple standards. Why couldn't all zones be specified till
a certain year say 2100 if it's so volatile? This isn't a problem with
Joda or JDK/ICU4j, but the tzdata.
The author of the IRAN section has clearly documented his constraint
(integer overflow for dates after 2037) which is a constraint that doesn't
apply to everyone. What if he had used Java rather than EMACS and
generated DST till 3000 AD? We would have accepted it even if we feel
we do not need that much DST information.
I can send a mail to the IANA mailing list and contribute data for this timezone
further than 2037 :)
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