The port to perl caused this to generate times several hours off (due to timezone follies).

webtools/bonsai/rebuildcvshistory.cgi

@@ -95,7 +95,7 @@ sub ProcessOneFile {
                               # OK, we're done.  Write it out.
                               if ($author && $datestr && $revision) {
                                    $datestr =~ s!^(\d+)/(\d+/\d+)!$2/$1!;
-                                   $date = str2time($datestr);
+                                   $date = str2time($datestr, "GMT");
                                    if ($date >= $::StartFrom) {
                                         AddToDatabase("C|$date|$author|$Repository|$filehead|$filetail|$revision||$branch|+$pluscount|-$minuscount", $desc);
                                    }