#!/usr/bin/perl
use warnings;
use strict;
my ($hours, $minutes, $seconds) = secs2hms(3723);
print "3723 seconds is $hours hours, $minutes minutes and $seconds seconds";
print "\n";
sub secs2hms {
    my ($h,$m);
    my $seconds = shift;
    $h = int($seconds/(60*60)); $seconds %= 60*60;
    $m = int($seconds/60); $seconds %= 60;
    ($h,$m,$seconds);
}