help me. how to change delay on pir sensor.?

Using Arduino Sensors
1

anyone can help me ?
how to change delay on my script.

delay pir sensor always crash with ldr sensor.
how to make sensors running simultaneously without waiting delay completion

helpme.ino (1.99 KB)

2 
//------------alternative to change delay?-----
//--------------- variabel  ldr-------------------
const int Pinled = 8;
int valueLDR;
//--------------- variabel  pir-------------------
int ledpir  = 13;
const int ReadPir  = 2;

unsigned long turnoff; // time to turn off pir led

void setup() {
  Serial.begin(9600);
  //SET PIN (OUTPUT/INPUT)
  //------------------LDR
  pinMode(Pinled, OUTPUT); // Set pin 8 -> output led from LDR sensor
  pinMode(A0, INPUT); // Set pin A0 -> input [pir]
  //------------------------------------
  //------------------PIR
  pinMode(ledpir, OUTPUT); //------ [led]set pin output for [pir]
  pinMode(ReadPir, INPUT); //------ set pin INPUT  for [pir]
  //------------------------------------
}
void loop()
{
  //------------------------------------------------------------------------
  valueLDR = analogRead(A0);
  if (valueLDR < 100)
    digitalWrite(Pinled, HIGH);
  else 
    digitalWrite(Pinled, LOW);
  //------------------------------------------------------------------------
  if (digitalRead(ReadPir) == HIGH)
  {
    digitalWrite(ledpir, HIGH);
    turnoff = millis() + 10000; // turn it off in ten seconds
  }
  if (millis() > turnoff)   digitalWrite(ledpir, LOW);


  //------------------------------------------------------------------------
}
3

thank you .
it's work.