Be Gentle - its my first submission and the first bit of Smalltalk I've  
done in years.

I did this to get a time zone aware TimeStamp.  That's my big  
contribution to this work.

You can get it off the Swiki
http://minnow.cc.gatech.edu/squeak/uploads/1076/TimeZoneDatabase2002- 
12-21.cs
and read more about it at
http://minnow.cc.gatech.edu/squeak/1076

This is basically David T Lewis's TimeZoneDatabase stuff with some  
extra support for prompting the user to select a timezone and extra  
logic that only loads all the timezones when the user is prompted to  
select a timezone.  Otherwise it only keeps two zones in memory - yours  
and the Zulu zone.  In addition, there is a bunch of glue that consists  
of:

* Added ISO 8601 read and write support to Date and Time.
* This package also includes a modified version of the TimeStamp class  
that comes with SqueakMap.  The new TimeStamp has been gutted and made  
timezone aware.  It is entirely implemented in terms of PointInTime.   
Thus, if you change your timezone, all of your timestamps will update  
accordingly.

TimeStamp also has support for reading/writing ISO 8601 format  
timestamps and consequently it is now safe to compare timestamps that  
were generated on different machines because they all reference the  
same base time.

Todd Blanchard