To me, "extend 400 years" seems actually a trifle excessive, since Daylight Saving Time rules appear to have a mean lifespan of a decade or so. The meaning of a given time zone that far in the future is, to put it mildly, conjectural. In Tcl's 'zic' counterpart (http://tip.tcl.tk/173), I decided somewhat arbitrarily to go out 100 years as a compromise between Y2038 bugs and disc footprint. If we all settle on 400 years as the standard, I could of course change that, but I'm reluctant to spend the space on it. (Tcl has a way of getting ported to strange places like routers and X-ray machines.) As I said, it sounds a bit excessive, because civil time zones are not stable for anywhere near that length of time. Messing around with the clocks seems to be one favorite activity of governments that want to give the impression that they're doing something. -- 73 de ke9tv/2, Kevin KENNY GE Corporate Research & Development kennykb@crd.ge.com P. O. Box 8, Bldg. K-1, Rm. 5B36A Schenectady, New York 12301-0008 USA