my $start_of_year = DateTime->new(year => $year, month => 01, day => 01);
my $booking_date = DateTime->new(year => $year, month => 12, day => 22);
my $start_of_year = DateTime->new(year => $year, month => 01, day => 01);
my $booking_date = DateTime->new(year => $year, month => 12, day => 22);