Hand Wash for 20 seconds

const int buttonPin = 2;  

int buttonState = 0;      

void setup() {
  pinMode(buttonPin, INPUT);
}

void loop() {
  
  buttonState = digitalRead(buttonPin);

  if (buttonState == HIGH) {
    
    digitalWrite(13, HIGH);
    digitalWrite(12, LOW);
    delay(20000);
    digitalWrite(12, HIGH);
    digitalWrite(13, LOW);
    delay(1000);
    digitalWrite(12, LOW);
  } else {
  
    digitalWrite(12, LOW);
    digitalWrite(13, LOW);
  }
}