Like this...
#!/usr/bin/perl
use strict;
use warnings;
my $date_time = qq(Sat, 05 Jan 2013 04:00:15 GMT);
$date_time =~ m/(.+), (\d{2} \w{3} \d{4}) (\d{2}:\d{2}:\d{2}) (\w+)/;
for ( $1, $2, $3, $4 ) { print qq($_\n) }
__END__
Karls-Mac-mini:monks karl$ ./dt.pl
Sat
05 Jan 2013
04:00:15
GMT
Update:
Edit typo...
$date_time =~ m/(.+), (.+) (.+) (.+)/;
Regards, Karl
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