how to pause time when hit an object

hi everyone how to i pause time for a few seconds when i hit an object? i have a timer script:

function Awake() {

 startTime = Time.time;

}

function OnGUI () {

GUI.skin = guiSkin; //make sure that your time is based on when this script was first called //instead of when your game started var guiTime = Time.time - startTime;

restSeconds = countDownSeconds - (guiTime);

 //display messages or whatever here -->do stuff based on your timer
 if (restSeconds == 60) {
     print ("One Minute Left");    
 }
 if (restSeconds == 0) {
     print ("Time is Over");
     restSeconds = 0;
 }
 //display the timer
 roundedRestSeconds = Mathf.CeilToInt(restSeconds);
 displaySeconds = roundedRestSeconds % 60;
 displayMinutes = roundedRestSeconds / 60; 

 text = String.Format ("{0:00}:{1:00}", displayMinutes, displaySeconds); 
 GUI.Label (Rect (500, 60, 300, 100), text);

}

i found a pause object script:

function PauseWaitResume (pauseDelay : float) {

 Time.timeScale = .0000001;
 
 yield WaitForSeconds(pauseDelay * Time.timeScale);
 
 Time.timeScale = 1.0;

}