how do i make motors run for a set amount of time

Projects Programming
9

If you want your motors to turn on and stay on for 25 minutes, and then turn off and continue with your code, you can do something like this:

const unsigned X_AXIS_PIN = 0;
const unsigned Y_AXIS_PIN = 1;
const unsigned Z_AXIS_PIN = 2;
const int motor1 = 3;
const int motor2 = 5;
const int motor3 = 10;
int motorState = LOW;
long delay25minutes = 1500000;    // delay for 25 minutes, which is 1500 seconds

void setup() 
{
  Serial.begin(9600);
  pinMode(motor1, OUTPUT);
  pinMode(motor2, OUTPUT);
  pinMode(motor3, OUTPUT);
}

  int x,
      y,
      z;
      
void loop()
{
    Serial.print(analogRead(X_AXIS_PIN));
    Serial.print(" ");
    x = analogRead(X_AXIS_PIN);
    Serial.print(analogRead(Y_AXIS_PIN));
    Serial.print(" ");
    y = analogRead(Y_AXIS_PIN);
    Serial.println(analogRead(Z_AXIS_PIN));
    z = analogRead(Z_AXIS_PIN);
    delay(5000);
      
    if( x < 700 && y < 700 && z < 700)
     {
        if (motorState == LOW)
        motorState = HIGH;
        else
        motorState = LOW ;
        
        digitalWrite(motor1, motorState);
        digitalWrite(motor2, motorState);
        digitalWrite(motor3, motorState);
        delay(delay25minutes);

        motorState = LOW;
        digitalWrite(motor1, motorState);
        digitalWrite(motor2, motorState);
        digitalWrite(motor3, motorState);
     }
     
     
}

If you want your Arduino to be doing some other code during the 25 minutes, then you need the blink without delay approach.