Arduino If Statement not working for RTC

[MicroBahner]

@homechennai

The position of the Servo doesn't change at all

You don't move your servo at 13:00, you only change the variable pos. After 1 sec you reset your variable pos to 0 and then move the servo - to '0' again.
Try this:

@homechennai

 if (Hour==13) {
    pos=180;
    myservo.write (pos);
    delay(1000);
    pos=0;
   }
    
  delay(1000);
  myservo.write (pos);