reservation_admin/app/common/model/AppointmentApplication.php

<?php

namespace app\common\model;

use think\Model;

class AppointmentApplication extends Model
{
    protected $updateTime = false;

    public function getFinishTimeAttr($value, $data)
    {
        return $value ? date('Y-m-d H:i:s', $value) : '';
    }

}