[Kde-pim] Libical versus system time zones

[Reinhold Kainhofer]

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Am Freitag, 24. November 2006 11:57 schrieb David Jarvie:
> It must have been too late at night when I wrote this - of course, the
> reason that the system time zones are output as RDATE values rather than
> RRULE values is that the tzfile format used to define system time zones,
> holds a sequence of time transitions rather than storing rules. 

I wouldn't like that approach. We had it with our holiday files and forgot to 
update them, so suddently no holidays were shown any more for some regions.

> Another 
> approach to generating the VTIMEZONE component would be to attempt to
> recognise the date sequence as a rule. 

For the Olsen TZ database including various links see
http://www.twinsun.com/tz/tz-link.htm

In particular, there is a converter from the Olsen DB to VTIMEZONE:
Vzic: http://dspace.dial.pipex.com/prod/dialspace/town/pipexdsl/s/asbm26/vzic/


Cheers,
Reinhold
- -- 
- ------------------------------------------------------------------
Reinhold Kainhofer, Vienna University of Technology, Austria
email: reinhold at kainhofer.com, http://reinhold.kainhofer.com/
 * Financial and Actuarial Mathematics, TU Wien, http://www.fam.tuwien.ac.at/
 * K Desktop Environment, http://www.kde.org, KOrganizer maintainer
 * Chorvereinigung "Jung-Wien", http://www.jung-wien.at/
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