----------------------------Original message---------------------------- I believe it was on this list some months ago that there was a discussion of an electronic system that provided time zones by coordinates, but I didn't save the info since I thought, or hoped, that no one would ever ask me this question. Does anyone recall the discussion and ultimate answer? As I recall there was some discussion back and forth because of the complexities caused by time zone boundaries not always following straight down a meridian, but it also seems to me that someone resolved that situation and recommeded a package that would answer these questions. Help! Donna Koepp University of Kansas Government Documents and Map Library DOCSMAP @ UKANVM 913 864-4660