use warnings;
use strict;

use Data::Dumper;

my $aref = [
          {
            'name' => 'Tim',
            'total' => 4,
            'months' => 1,
            'days' => 3
          },
          {
            'total' => 22,
            'name' => 'Adam',
            'days' => 22
          },
          {
            'name' => 'Keas',
            'total' => 114,
            'months' => 5,
            'days' => 107,
            'test' => 2
          }
];

my $href;

$href->{delete $_->{name}} = $_ for @$aref;

print Dumper $href;