Hi gube, as Corion suggested you can do it simply without using module. Here is my try, but it can be still simplified.
use strict;
my @a = qw(1:08 2:53 1:00);
my ($tt, $mins, $sec);
for my $t (@a)
{
my ($m, $s) = split /:/, $t;
my $tm = $m*60;
$tt = $tt + $tm + $s;
}
$sec = sprintf ("%02d", $sec = $tt%60); #seconds
$mins = int($tt/60); #minutes
print "$mins:$sec";
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