ICS functions Library

[Sivakatirswami]

Does anyone have a  library of functions already written for dealing 
with vObjects in .ics files?

I'm particularly interested in pre-written date-time functions that can 
parse for and deliver the simple iCal date-time stamps

20091130T164200Z

I could go ahead and start writing these myself, but I'm certain someone 
among us has already written a pile of these.

Thanks!