Monks, please help.

I am trying to convert 3 epoch times to various other timezones and I can't understand why incorrect times are being displayed for Europe/Paris and Europe/Warsaw during winter time. Can you explain this please?

PERL 
#!/opt/perl/5.8.0/bin/perl

use Time::Local;
use strict;

my $nowTime = time;
my $winTime = timegm (0, 0, 9, 1, 0, 107);
my $sumTime = timegm (0, 0, 9, 1, 6, 107);

foreach my $e ($nowTime, $winTime, $sumTime) {

  foreach ("UTC","GB-Eire","Europe/London","CET","Europe/Warsaw","Euro
+pe/Paris") {

    $ENV{TZ} = $_;

    print scalar localtime($e), " $ENV{TZ}";
    print " (DST)" if ((localtime($e))[8]);
    print "\n";

  }

  print "\n";

}

[download]
OUTPUT 
Thu Sep 20 19:53:10 2007 UTC
Thu Sep 20 20:53:10 2007 GB-Eire (DST)
Thu Sep 20 20:53:10 2007 Europe/London (DST)
Thu Sep 20 21:53:10 2007 CET (DST)
Thu Sep 20 21:53:10 2007 Europe/Warsaw (DST)
Thu Sep 20 21:53:10 2007 Europe/Paris (DST)

Mon Jan  1 09:00:00 2007 UTC
Mon Jan  1 09:00:00 2007 GB-Eire
Mon Jan  1 09:00:00 2007 Europe/London
Mon Jan  1 10:00:00 2007 CET
Mon Jan  1 09:00:00 2007 Europe/Warsaw
Mon Jan  1 09:00:00 2007 Europe/Paris

Sun Jul  1 09:00:00 2007 UTC
Sun Jul  1 10:00:00 2007 GB-Eire (DST)
Sun Jul  1 10:00:00 2007 Europe/London (DST)
Sun Jul  1 11:00:00 2007 CET (DST)
Sun Jul  1 11:00:00 2007 Europe/Warsaw (DST)
Sun Jul  1 11:00:00 2007 Europe/Paris (DST)

[download]

In reply to $ENV{TZ} and localtime by Amdes

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