#### How to calculate total time in laravel

I have Project about timesheet, i have tasks table and timers table, each task has many timers and timers belong to task.

I calculate the time between start_at and end_at in getTotalAttribute as you see in the pictures down, and i got the difference between them in minutes.

Timer Model

class TsTimer extends Model
{
use HasFactory;

public $appends = ['total']; public$casts = [
'start' => 'datetime',
'end' => 'datetime',
];

return $this->belongsTo(TsTask::class); } public function user(){ return$this->belongsTo(User::class);
}

public function getTotalAttribute(){
// calclute the difference between two time start and end in mints.
if($this->end){ return$this->start->diffInMinutes($this->end); } return 0; }  Task Model class TsTask extends Model { use HasFactory; public$appends = ['total', 'timer_total'];

public function project(){
return $this->belongsTo(TsProject::class); } public function timers(){ return$this->hasMany(TsTimer::class,'task_id');
}

public function getTotalAttribute(){
$format=$this->timers->sum('total');
return date('i:s',\$format);
}


And now i need to calculate total time for these timers, like for example first timer (4hours – 10 min), second timer (1 hour), the total will be 5:10.

So i need to calculate this total , any help or suggestion please, i have no idea how to calculate it.