Example_

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class Manager : MonoBehaviour {

    public bool gameActive;

    //===Selector===
    public GameObject selector;
    public Camera cam;
    public GameObject selected;
    public float selectorTimer;
    public bool runTimer;

    //===Time===
    public int min;  //Converted Minutes
    public int hour; //Converted Hours
    public float absoluteTime; //True Time
    public string currentTime;  //new Displayed Time
    public string previousTime;  //previous Display Time. Used to stop frequent re-rendering of Time for performance
    public float tempTime; //Trash_temporary time
    public Text TimeDisplay;

    //===Pause===
    public bool paused;
    public GameObject PauseScreen;

    void Start () {
        gameActive = true;
        runTimer = false;
        previousTime = " ";
        paused = false;
    }


    void Update () {
        if (gameActive) {
            RunSelector ();
            RunTime ();
        }
    }

    public void RunSelector(){
        if (runTimer) {
            selectorTimer += Time.deltaTime;
        }
        if (Input.GetMouseButtonDown (0)) {
            RaycastHit hit;
            Ray ray = cam.ScreenPointToRay (Input.mousePosition);

            if (Physics.Raycast (ray, out hit)) {
                if (selected != hit.transform.gameObject && hit.transform.name != "Selector") {
                    runTimer = true;
                    print (hit.transform.name);
                    selected = hit.transform.gameObject;
                    selector.transform.position = hit.transform.position;
                    selectorTimer = 0;
                } else {
                    print ("Already selected");
                }
            }
        }
        if (selectorTimer >= 4 && runTimer) {
            runTimer = false;
            selector.transform.position = new Vector3 (0, -100, 0);
            selected = selector;
            selectorTimer = 0;
        }
    }

    //==========Running the overall game clock==========
    public void RunTime(){
        absoluteTime += Time.deltaTime;
        //====Minutes====
        if (absoluteTime >= .25) {
            min += 1;
            absoluteTime = 0;
        }
        //====Hours====
        if (min >= 60) {
            hour += 1;
            min = 0;
        }
        if (hour >= 24) {
            hour = 0;
        }
        //====Convert====
        currentTime = hour.ToString("D2") + ":" + min.ToString("D2");
        if (previousTime != currentTime) {
            previousTime = currentTime;
            TimeDisplay.text = currentTime;
        }
    }

    public void ControlPause(){
        paused = !paused;
        gameActive = !gameActive;
        if (paused) {
            PauseScreen.SetActive (true);
        } else if (!paused) {
            PauseScreen.SetActive (false);
        } else {
            Debug.Log ("ERROR: PAUSE");
        }
    }
}