Problem calculating employee hours work time

Question

I have a problem when I want to calculate Number of employee hours I got this issue,

enter image description here

I used TIMEDIFF TO Calculate number of hours and calculate correctly in myphpadmin

But when I tested in my website it comes like this enter image description here This for my payroll for sloma a 100$ per hours and for the attendance he worked 9 hours

even when i try to see how many hours for each employee it showed to me like this enter image description here

bellow is my SQL table for attendance

CREATE TABLE `attendance` (
  `id` int(11) NOT NULL,
  `employee_id` int(11) NOT NULL,
  `date` date NOT NULL,
  `time_in` time NOT NULL,
  `status` int(1) NOT NULL,
  `time_out` time NOT NULL,
  `num_hr` time NOT NULL AS (TIMEDIFF(time_out, time_in)) VIRTUAL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

I'm still a beginner so bear with me :)