- $date =~ s/^\s*(\d+)-(\w\w\w)-(19\d\d)$/$1 $2 $3/;
- $time =~ s/^(\d\d)(\d\d)Z$/$1:$2 +0000/;
- return str2time("$date $time");
+ my ($thisyear) = (gmtime)[5] + 1900;
+
+ return 0 unless $date =~ /^\s*(\d+)-(\w\w\w)-([12][90]\d\d)$/;
+ return 0 if $3 > 2036;
+ return 0 unless abs($thisyear-$3) <= 1;
+ $date = "$1 $2 $3";
+ return 0 unless $time =~ /^([012]\d)([012345]\d)Z$/;
+ $time = "$1:$2 +0000";
+ my $r = str2time("$date $time");
+ return $r == -1 ? undef : $r;