+my $now;
+my $date = cldate($main::systime);
+my $utime = $main::systime;
+my @out;
+
+while (@f) {
+ my $f = shift @f;
+
+ if ($f =~ /^\d+$/ && $f < 366) { # no of days
+ $days = $f;
+ next;
+ }
+ if (my $ut = Date::Parse::str2time($f)) { # is it a parseable date?
+ $utime = $ut+3600;
+ next;
+ }
+ push @out, $self->msg('e33', $f);
+}
+
+return (1, @out) if @out;
+
+$now = Julian::Day->new($utime);
+$now = $now->sub($days);
+$date = cldate($utime);