<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">That's what I meant (I think) - I meant that the change in time offset sticks, not that the change happens every year. Did I get that right? <DIV><BR class="khtml-block-placeholder"></DIV><DIV>Thanks again, </DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Bobby</DIV><DIV><BR class="khtml-block-placeholder"><DIV><BR class="khtml-block-placeholder"><DIV><DIV><DIV><DIV>On Sep 26, 2007, at 12:23 PM, Rodrigo Severo wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite">On 9/26/07, <B class="gmail_sendername">Bobby Rullo</B> <<A href="mailto:br@osafoundation.org">br@osafoundation.org</A>> wrote:<DIV><SPAN class="gmail_quote"></SPAN><BLOCKQUOTE class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <DIV style=""><BR><DIV>That makes sense now, although I think it would be clearer to change the last Zone line to stop in 1989 and add one more Zone line like so:</DIV><SPAN class="q"><DIV><BR></DIV># Zone NAME GMTOFF RULES FORMAT [UNTIL] <BR></SPAN> -6:00 Salv C%sT 1989<BR><DIV> -6:00 - CST <BR><BR><DIV>The conceptual block that I had to overcome was that I thought of Rules as things that happen every year, and if there's not a rule for that year, it doesn't apply. In other words I didn't grok that "the last rule sticks" </DIV></DIV></DIV></BLOCKQUOTE><DIV><BR>I think I haven't made myself clear. It isn't a question of "the last rule sticking". Rules defines <SPAN style="font-weight: bold;">changes</SPAN> in presented time. <SPAN style="font-weight: bold;">The</SPAN> <SPAN style="font-weight: bold;">time</SPAN> defined by the last rule, i.e., the last change in time, <SPAN style="font-weight: bold;">sticks</SPAN>, not the last rule. See the diference? <BR><BR><BR>Rodrigo Severo<BR><BR></DIV></DIV></BLOCKQUOTE></DIV><BR></DIV></DIV></DIV></DIV></BODY></HTML>