try 
sort {(-M $a) <=> (-M $b)}

[download]
Update
Imho it is better to use stat to test the files. -M uses the $^T special variable, which is set once at the start of the script. For long running scripts this is not recommended. Try this (untested): 
#!/usr/bin/perl

use warnings;
use strict;
use File::Copy;

my $srcdir = "\\\\windowsservername\\directory\\Subdirectory\\";

my $dest = "C:\\Documents and Settings\\";

LOOP:
while (1) {
    undef $!;
    my %fileage = map { ($_ => (stat)[9]) } glob "$srcdir\\*.*";
    die "can't glob $srcdir $!" if $!;

    my $xmlfile = (sort { $fileage{$a} <=> $fileage{$b} } keys %fileag
+e)[0];

    unless (defined $xmlfile){
        print "Files have been ended.\n\n";
        last LOOP;
    }

    my $old     = "$srcdir/$xmlfile";

    move( $old, $dest ) or die "Move $old -> $dest failed: $!";

    print
      "File Name: $xmlfile moved to Fileshare - 30 mins for next uploa
+d.\n\n";
    sleep 1800;    # 30 Minutes
}

[download]
print+qq(\L@{[ref\&@]}@{['@'x7^'!#2/"!4']});

In reply to Re: Sort files by oldest timestamp by codeacrobat
in thread Sort files by oldest timestamp by srianju

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