Interesting, however:
1) Comment out the split, you seem to not require that anymore
2) In a world where using the minimum amount of CPU cycles is a must to not hinder normal processes, consider this 16% faster alternative:

use Benchmark qw(:all);
$count = -5;
cmpthese(
    $count,
    {
        'org' => sub {
            for my $etime (qw(3-12:12:12 11:22)) {
                my $age;
                my $time = $etime;
                $age = ($1 * 86400) if $time =~ s/(\d+)-//;
                #my ( $hours, $min, $sec ) = split /:/, $time;
                my @mult = ( 1, 60, 3600 );
                for ( reverse split /:/, $time ) {
                    $age += $_ * shift @mult;
                }
            }

        },
        'mod' => sub {

            for my $etime (qw(3-12:12:12 11:22)) {
                my $age;  # age in seconds
                my $time = $etime;
                my @mult = ( 1, 60, 3600, 86400);
                for ( reverse split /[:\-]/, $time ) {
                    $age += $_ * shift @mult;
                }
            }

        },
    }
);

[download]

edit (seems a post comment was not recorded): I like the line with "he he he"... adding it to my perl knowledge ...

In reply to Re: converting 'ps' running times by FreeBeerReekingMonk
in thread converting 'ps' running times by Random_Walk

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