How can i acess the local Player from Script

I have a Network game and there are a few Scripts who call the Player Script in theier Start() Methods. Looks like this:

void Start () {

    FirstPersonController fpc = GameObject.FindGameObjectWithTag("Player").GetComponent<FirstPersonController>();
    int i = fpc.GetSecToMax();
}

But in an Network Game there are Multiple Players and i want to know how i can just enter the Local Player (this script work on the Host Player but not on Client Players)

isLocalPlayer