The project you are embarking on seems fantastic, and looks as though it will eventually make possible the fulfilment of a dream of mine, namely a live time-zone map on the Web showing both current time zones (labeled with UT offset) - in colors reflecting UT offset alone, and not the so-called "Standard" time in that region - and the time in each of those zones. Once such a map is operational, many other possibilities present themselves of course (e.g. zooming in, display for a past or future date). I'm afraid I can't give you any help with boundary-vector information, but I noticed a number of omissions/errors regarding Australia (where I live) in your summary information: (1)

5. australasia:Australia Indian/Christmas 7:00 None Australia, Western 8:00 Australia/Perth 8:00 None Australia, Central 9:30 Australia/Adelaide 9:30 AS Australia/Darwin 9:30 Aus Australia, Eastern 10:00 Australia/Brisbane 10:00 AQ Australia/Sydney 10:00 AN Australia/Lord_Howe 10:30 LH

You have left out the Cocos Islands, which (unfortunately) have a time zone of their own (and not that of neighboring Christmas Island). It might look something like this: Indian/Cocos 6:30 None (2) You have also overlooked Tasmania, which starts keeping daylight-saving time before other parts of the country which observe it do: Australia, Eastern Australia/Hobart 10:00 AT (?) (3) Note also that Australia/Brisbane no longer observes daylight-saving time at all. (Could it have "None" in its DST-Rule column?)

Australia/Hobart, Australia/Melbourne \ (duplicates of Australia/Sydney)

As already intimated, this is not entirely true; Australia/Melbourne is a duplicate of Australia/Sydney, but Australia/Hobart is not. (4)

Australia/Lindeman (duplicate of Australia/Brisbane)

This is only true if historical observance is irrelevant. The Australia/Lindeman entry was created for a few Queensland islands for no other reason than that they continued to switch to daylight-saving time for a couple of years after the rest of the state ceased doing so. To the best of my knowledge, however, the two zones are now indistinguishable from each other (UT+10:00 kept year-round). _______________ Alex LIVINGSTON Macintosh Support Computing & IT (C&IT) Australian Graduate School of Management (AGSM) The University of New South Wales (UNSW) Sydney NSW 2052 AUSTRALIA E-mail : alex@agsm.unsw.edu.au; cit@agsm.unsw.edu.au (C&IT) Facsimile: +61 2 9931-9349 Telephone: +61 2 9931-9264