my $tests = [
'Nov 29 16:01:27 
Nov 29 16:01:28 
Nov 29 16:01:28
Nov 29 16:01:28
Nov 29 16:01:22'
];


# Put the regex you want to test in here.



foreach my $test (@$tests) {
        if($test =~ qr/^(?:Nov 29 [^\n]*\n)*\z/s) {
             print "$test\n REGEX MATCHED\n";
        } else {
             print "$test\n FAILED!\n";
        }
}

Nov 29 16:01:27 
Nov 29 16:01:28 
Nov 29 16:01:28
Nov 29 16:01:28
Nov 29 16:01:22
 FAILED!