Use 'sort' with a file test operator ('-M' for modification time, '-A' for access time, et.c.).
The following script this works fine on my linux box; apologies if it doesn't port to Windows ;-}

#!/usr/bin/perl -w
 
use strict;
 
chdir '/winD' or die "Could not change directory: $!";
opendir DIR, '.' or die "Could not open directory: $!";
my @files = readdir DIR;
closedir DIR;
my @sortedfiles = sort { -M $a <=> -M $b } @files;
 
$, = "\n";
print @sortedfiles;
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