#! /usr/bin/perl
use strict;
use warnings;


# fetch timestamps directly before and after system() call
# we don't care about data or exitstatus of called programs
my $start_time = time;
system( @ARGV );   
my $end_time = time;


printf "Started:  %s\n", scalar(localtime($start_time));
printf "Finished: %s\n", scalar(localtime($end_time));
printf "Runtime:  %ss\n", $end_time - $start_time;