use strict;
my $host = '129.6.15.28';
my $port = '13';
my $sock = IO::Socket::INET->new(PeerAddr => $host,
                                 PeerPort => $port,
                                 Proto => 'TCP');  
die "Couldn't connect to $host on $port: $!\n" unless $sock;
scalar <$sock>;
my $time = scalar <$sock>;
$sock->close;  

print $time."\n";

# $time has the format:
#JJJJJ YR-MO-DA HH:MM:SS TT L H msADV UTC(NIST) OTM