How to get total working hours excluding lunch break and holidays.

good day, I want to exclude lunch break in total working hours, holidays seems to work only lunch break wont, I don't know what could be the condition to apply, I just new here please help me. here is my code in blade..

,,, <?php $start_time = Carbon\Carbon::createFromFormat('H:i:s', "08:15:00"); $end_time = Carbon\Carbon::createFromFormat('H:i:s', "16:45:00");

                                        $work_date_start = Carbon\Carbon::createFromFormat('Y-m-d', date('Y-m-d', strtotime($works->start))); //date start
                                        $work_start_time = Carbon\Carbon::createFromFormat('H:i:s', date('H:i:s', strtotime($works->start))); //time start
                                        $work_date_end = Carbon\Carbon::createFromFormat('Y-m-d', date('Y-m-d', strtotime($works->end))); //date start
                                        $work_end_time = Carbon\Carbon::createFromFormat('H:i:s', date('H:i:s', strtotime($works->end))); //time start
                                        $time = 0;
                                        $total_hours = 0;

                                            //Calculate time difference from start to end (same date) 
                                        if($work_date_start == $work_date_end){
                                            $time = $works->start->diffInMinutes($works->end); 
                                            
                                            $total_hours += $time;

                                            Log::info('TOTAL HOURS1:' .$total_hours. '| START:' .$works->start. '| END:' .$works->end. '| JO:' .$data->getJobOrder->jo_no);
                                            
                                        }else{
                                            // Calculate the time difference from work start (current date)
                                            if(strtotime($work_start_time) >= strtotime($start_time) && strtotime($work_start_time) <= strtotime($end_time)){
                                                $time += $work_start_time->diffInMinutes($end_time);
                                                Log::info('TOTAL HOURS_T1:' .$time. '| START:' .$works->start. '| END:' .$works->end. '| JO:' .$data->getJobOrder->jo_no);
                                            }
                                    
                                            // Calculate the time difference from work end (next date) 
                                            if(strtotime($work_end_time) >= strtotime($start_time) && strtotime($work_end_time) <= strtotime($end_time)){
                                                $time += $start_time->diffInMinutes($work_end_time);
                                                Log::info('TOTAL HOURS_T2:' .$time. '| START:' .$works->start. '| END:' .$works->end. '| JO:' .$data->getJobOrder->jo_no);
                                            }
                                    
                                            //If multiple days are different  (multiple date)
                                            $current_date = Carbon\Carbon::createFromFormat('Y-m-d', date('Y-m-d', strtotime($works->start)));
                                            if($work_date_start->diffInDays($work_date_end) > 1){
                                                for ($i=0; $i < $work_date_start->diffInDays($work_date_end); $i++) { 
                                                    // Get the current date
                                                    $current_date->addDay();
                                                    if($holidays != null){
                                                        foreach ($holidays as $data) {
                                                            if(date('Y-m-d', strtotime($current_date)) == date('Y-m-d', strtotime($data->date))){
                                                                continue;
                                                            }
                                                        }
                                                    }elseif(date('l', strtotime($current_date)) == "Sunday"){
                                                        continue;
                                                    }elseif (date('Y-m-d', strtotime($current_date)) != date('Y-m-d', strtotime($work_date_end))){
                                                        $date_hours_diff = 8;
                                                        $time += 60 * $date_hours_diff; 

                                                        Log::info('TOTAL HOURS_T3:' .$time. '| START:' .$works->start. '| END:' .$works->end. '| JO:' .$data->getJobOrder->jo_no);
                                                    }

                                                }
                                            }
                                          
                                            $total_hours += $time;
                                            // Log::info('TOTAL HOURS2:' .$total_hours. '| START:' .$works->start. '| END:' .$works->end. '| JO:' .$data->getJobOrder->jo_no);
                                        
                                        }
                                        //ACTUAL TIME
                                        $hours = floor($total_hours / 60);
                                        $minutes =  $total_hours % 60;
                                        $actual_time = $hours + round($minutes/ 60, 2);

                                        //EFFICIENCY
                                        if($actual_time != 0) {
                                        $efficiency = ($works->allot_hours / $actual_time) * 100;
                                        }else{
                                        $efficiency = 0; 
                                        }
                                        
                                        //TOTAL ACTUAL TIME
                                        $total_all_actual_time += $actual_time;
                                        //TOTAL COMMITED TIME
                                        $total_all_commited_time += $works->allot_hours;                                          
                                    ?>