[Vobject] date/time representations

[Jeffrey Harris]

Hi Dave,

> There's a library I mentioned to Jeffrey a while back which parses, and 
> represents, iCal's date formats, including RRULE, and provides a spiffy 
> interface to them.

[snip]

> I thought we'd be using that? (I do on my stuff, it's very spiffy indeed.)

TJ's been working on this, I DEFINITELY want to use dateutil.

I don't know how good dateutil's RRULE implementation is, RRULEs are 
notorious for being a pain to implement.  I'm particularly worried about 
RRULEs as they relate to timezones.  There's been an interesting (and 
lengthy) discussion on ietf-calsify about the need for local timezone 
information in RRULEs, see for instance 
<http://lists.osafoundation.org/pipermail/ietf-calsify/2004-October/000264.html>, 
I've had this dream that vobject could avoid fooling with timezones and 
only deal with UTC times, corner cases for RRULEs make that a sketchy 
proposition.

Sincerely,
Jeffrey