#!/usr/bin/perl -w

use strict;

use Time::Local;
     
my %months = (
	'Jan' => 0,
	'Feb' => 1,
	'Mar' => 2,
	'Apr' => 3,
	'May' => 4,
	'Jun' => 5,
	'Jul' => 6,
	'Aug' => 7,
	'Sep' => 8,
	'Oct' => 9,
	'Nov' => 10,
	'Dec' => 11,
	);
    
my ($wday, $mon, $mday, $hr, $min, $sec, $year);
 
my $date = 'Mon Apr 18 15:17:29 2005';
   
if (($wday, $mon, $mday, $hr, $min, $sec, $year) = $date =~ /(\w+)\s+(\w+)\s+(\d+)\s(\d+):(\d+):(\d+)\s+(\d+)/) {
	foreach my $key (keys %months) {
		$mon =~ s/$key/$months{$key}/i;
	}
    
	my $local_epoch = timelocal($sec, $min, $hr, $mday, $mon, $year);
	my $gmt_epoch = timegm($sec, $min, $hr, $mday, $mon, $year);

}