[tz] [PATCH 2/3] Replace some zones with links when that doesn't lose non-LMT info.

yoshito_umaoka at us.ibm.com yoshito_umaoka at us.ibm.com
Thu Sep 5 18:18:39 UTC 2013

> I do think, on a more general level, that it is a bit unfortunate that
> the format of the tzdata files is now effectively frozen because so
> many external users have chosen to parse the source rather than the
> compiled form.  This will make it much more difficult to make changes
> in the future, should they be needed.

If my understanding is correct, the output from zic does not preserve 
daylight saving amount.
TimeZone class in our project (ICU) exposes an API for accessing base 
offset and daylight saving amount separately for historical reason (same 
thing found in JDK Calendar class). This is one of the reasons why we 
decided to customize zic and use the text source format as input. I 
personally think consumers of our code don't care about daylight saving 
amount (mostly +1 hour, but few exceptions) although.

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