Custom Millis() delay

Projects Programming
4

Ok that all makes sense I was declaring the timer too much it was updating each cycle so it would never be correct.

I got it working with the code

unsigned long Timer;
int button = digitalRead(7);
boolean on = true;
void setup() 
{
  Serial.begin(9600);// put your setup code here, to run once:
  pinMode(13, OUTPUT);
  pinMode(7, INPUT);
  digitalWrite(7, HIGH);
  digitalWrite(13, HIGH);
  Timer = millis();

}
void loop() 
{

    if(button == 1)
    {
      customDelay();
    }// put your main code here, to run repeatedly: 
}

void customDelay()
{
  if (( millis() - Timer) >= 5000)
  {
    digitalWrite(13, LOW);
  }  
}

Now I need to reset the timer so when I push the button the delay starts again. Any ideas on how to do that, I tried

unsigned long Timer;
int button = digitalRead(7);
boolean on = true;
void setup() 
{
  Serial.begin(9600);// put your setup code here, to run once:
  pinMode(13, OUTPUT);
  pinMode(7, INPUT);
  digitalWrite(7, HIGH);
  digitalWrite(13, HIGH);
  Timer = millis();

}
void loop() 
{

  if(button == 1)
  {
    customDelay();
  }// put your main code here, to run repeatedly: 
  if(button == 0)
  {
    Timer= millis();
  }
}

void customDelay()
{
  if (( millis() - Timer) >= 5000)
  {
    digitalWrite(13, LOW);
  }  
}