Here is my first solution.

use Time::Piece;

my $now = Time::Piece->new;
my $nowlastyear = $now->add_years(-1);
my $thisyear = $now->strftime("%Y");
my $lastyear = $nowlastyear->strftime("%Y");
my $afy = "08/01/$thisyear";
my $afyt = Time::Piece->strptime($afy, '%m/%d/%Y');
my $bfy = "08/01/$lastyear";
my $bfyt = Time::Piece->strptime($bfy, '%m/%d/%Y');
my $daysdiff;

if ($now > $afyt) {
   $daysdiff = $now - $afyt;
}
else {
   $daysdiff = $now - $bfyt;
}
$daysdiff = int($daysdiff->days);
print $daysfiff;
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